91视频专区

《91福利一区二区三区》完整版国语-80s电影电影全集观看-巨为影院苏州晶体公司无限看APP下载-苏州晶体公司无限看APP V2.9.7.673-奇Q工具网

多余的电量 是给动力电池充电

2024年12月22日,民众对抢险救援的反应

《91福利一区二区三区》完整版国语-80s电影电影全集观看-巨为影院苏州晶体公司无限看APP下载-苏州晶体公司无限看APP V2.9.7.673-奇Q工具网

但是却有媒体拍到现在的江一燕已经定居在云南的一所小县城里那里的环境好房价物价也都比较低已经40多岁的江一燕还自己外出买菜穿着粉色的连衣裙手上还拿着一个编织袋在菜摊上挑选蔬菜

二、拉偏架她一直坚持和我爸各花各的,从不要我爸给她买东西,也不过问我爸给我儿子花钱,她说,就应该谁的孩子谁负责,她嫁给我爸单纯就是因为我爸人品好。

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39个(Ge)电(Dian)工(Gong)专(Zhuan)业(Ye)术(Shu)语(Yu)解(Jie)释(Shi)!这(Zhe)才(Cai)是(Shi)电(Dian)工(Gong)入(Ru)门(Men)的(De)干(Gan)货(Huo)原(Yuan)创(Chuang)2021-09-21 07:07·云(Yun)硕(Shuo)天(Tian)琪(Zuo)做(Zuo)电(Dian)工(Gong)的(De)师(Shi)傅(Fu)都(Du)知(Zhi)道(Dao),电(Dian)工(Gong)的(De)理(Li)论(Lun)知(Zhi)识(Shi)非(Fei)常(Chang)重(Zhong)要(Yao),理(Li)论(Lun)知(Zhi)识(Shi)可(Ke)以(Yi)在(Zai)一(Yi)定(Ding)程(Cheng)度(Du)上(Shang)指(Zhi)导(Dao)实(Shi)践(Jian)经(Jing)验(Yan),是(Shi)电(Dian)工(Gong)发(Fa)展(Zhan)的(De)基(Ji)础(Chu),当(Dang)然(Ran)了(Liao),做(Zuo)电(Dian)工(Gong)掌(Zhang)握(Wo)一(Yi)些(Xie)电(Dian)工(Gong)行(Xing)业(Ye)的(De)专(Zhuan)业(Ye)术(Shu)语(Yu)也(Ye)是(Shi)非(Fei)常(Chang)重(Zhong)要(Yao)的(De)!要(Yao)不(Bu)然(Ran)和(He)专(Zhuan)业(Ye)人(Ren)员(Yuan)交(Jiao)流(Liu)的(De)时(Shi)候(Hou)不(Bu)免(Mian)会(Hui)很(Hen)尴(Zuo)尬(Zuo)!1、电(Dian)流(Liu):导(Dao)体(Ti)内(Nei)的(De)自(Zi)由(You)电(Dian)子(Zi)或(Huo)离(Li)子(Zi)在(Zai)电(Dian)场(Chang)力(Li)的(De)作(Zuo)用(Yong)下(Xia),有(You)规(Gui)律(Lv) 的(De)流(Liu)动(Dong)叫(Jiao)作(Zuo)电(Dian)流(Liu)。人(Ren)们(Men)规(Gui)定(Ding)正(Zheng)电(Dian)荷(He)移(Yi)动(Dong)的(De)方(Fang)向(Xiang)为(Wei)电(Dian)流(Liu) 的(De)正(Zheng)方(Fang)向(Xiang)。电(Dian)流(Liu)用(Yong)字(Zi)母(Mu) I 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei)A 。2、电(Dian)流(Liu)强(Qiang)度(Du):衡(Heng)量(Liang)电(Dian)流(Liu)强(Qiang)弱(Ruo)的(De)物(Wu)理(Li)量(Liang)。单(Dan)位(Wei)时(Shi)间(Jian)内(Nei)通(Tong)过(Guo)导(Dao)体(Ti)截(Jie)面(Mian)积(Ji)的(De)电(Dian)量(Liang)即(Ji)为(Wei)电(Dian)流(Liu)强(Qiang)度(Du),用(Yong)字(Zi)母(Mu) I 表(Biao)示(Shi),习(Xi)惯(Guan)上(Shang)简(Jian)称(Cheng)为(Wei)电(Dian)流(Liu)。3、电(Dian)流(Liu)密(Mi)度(Du):在(Zai)单(Dan)位(Wei)横(Heng)截(Jie)面(Mian)积(Ji)上(Shang)通(Tong)过(Guo)的(De)电(Dian)流(Liu)大(Da)小(Xiao),称(Cheng)为(Wei)电(Dian)流(Liu)密(Mi)度(Du)。单(Dan)位(Wei)为(Wei) A/mm2。4、电(Dian)位(Wei):在(Zai)电(Dian)场(Chang)中(Zhong),单(Dan)位(Wei)正(Zheng)电(Dian)荷(He)从(Cong) a 点(Dian)移(Yi)到(Dao)参(Can)考(Kao)点(Dian)时(Shi),电(Dian)场(Chang)力(Li) 所(Suo)做(Zuo)的(De)功(Gong),称(Cheng)为(Wei) a 点(Dian)对(Dui)参(Can)考(Kao)点(Dian)的(De)电(Dian)位(Wei)。进(Jin)行(Xing)理(Li)论(Lun)研(Yan)究(Jiu) 时(Shi), 常(Chang)取(Qu)无(Wu)限(Xian)远(Yuan)点(Dian)作(Zuo)为(Wei)电(Dian)位(Wei)的(De)参(Can)考(Kao)点(Dian); 在(Zai)实(Shi)用(Yong)工(Gong)程(Cheng)中(Zhong), 常(Chang)取(Qu)大(Da)地(Di)作(Zuo)为(Wei)电(Dian)位(Wei)的(De)参(Can)考(Kao)点(Dian)。电(Dian)位(Wei)的(De)单(Dan)位(Wei)为(Wei) V。5、电(Dian)动(Dong)势(Shi):单(Dan)位(Wei)正(Zheng)电(Dian)荷(He)由(You)低(Di)电(Dian)位(Wei)移(Yi)向(Xiang)高(Gao)电(Dian)位(Wei)时(Shi)非(Fei)静(Jing)电(Dian)力(Li)对(Dui)它(Ta)所(Suo)做(Zuo) 的(De)功(Gong)称(Cheng)为(Wei)电(Dian)动(Dong)势(Shi)。用(Yong)字(Zi)母(Mu) E 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) V6、电(Dian)阻(Zu):导(Dao)体(Ti)能(Neng)导(Dao)电(Dian),同(Tong)时(Shi)对(Dui)电(Dian)流(Liu)有(You)阻(Zu)力(Li)作(Zuo)用(Yong),这(Zhe)种(Zhong)阻(Zu)碍(Ai)电(Dian)流(Liu) 通(Tong)过(Guo)的(De)能(Neng)力(Li)称(Cheng)为(Wei)电(Dian)阻(Zu),用(Yong)字(Zi)母(Mu) R 或(Huo) r 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) Ω。7、电(Dian)阻(Zu)率(Lv):又(You)称(Cheng)电(Dian)阻(Zu)系(Xi)数(Shu)。是(Shi)衡(Heng)量(Liang)物(Wu)体(Ti)导(Dao)电(Dian)性(Xing)能(Neng)好(Hao)坏(Huai)的(De)一(Yi)个(Ge)物(Wu)理(Li) 量(Liang),用(Yong)字(Zi)母(Mu) ρ表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) Ω·m 。其(Qi)数(Shu)值(Zhi)是(Shi)指(Zhi)导(Dao)体(Ti)的(De) 长(Chang)度(Du)为(Wei) 1m 、截(Jie)面(Mian)积(Ji)为(Wei) 1mm2的(De)均(Jun)匀(Yun)导(Dao)体(Ti)在(Zai)温(Wen)度(Du)为(Wei) 20℃ 时(Shi)所(Suo)具(Ju)有(You)的(De)电(Dian)阻(Zu)值(Zhi),即(Ji)为(Wei)该(Gai)导(Dao)体(Ti)的(De)电(Dian)阻(Zu)率(Lv)。8、电(Dian)阻(Zu)的(De)温(Wen)度(Du)系(Xi)数(Shu):表(Biao)示(Shi)物(Wu)质(Zhi)的(De)电(Dian)阻(Zu)率(Lv)随(Sui)温(Wen)度(Du)而(Er)变(Bian)化(Hua)的(De)物(Wu)理(Li)量(Liang),其(Qi)数(Shu)值(Zhi)等(Deng) 于(Yu)温(Wen)度(Du)每(Mei)升(Sheng)高(Gao) 1℃ 时(Shi),电(Dian)阻(Zu)率(Lv)的(De)变(Bian)化(Hua)量(Liang)与(Yu)原(Yuan)来(Lai)的(De)电(Dian)阻(Zu)率(Lv)的(De)比(Bi)值(Zhi),用(Yong)字(Zi)母(Mu) d 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) 1/℃。9、电(Dian)导(Dao):物(Wu)体(Ti)传(Chuan)导(Dao)电(Dian)流(Liu)的(De)本(Ben)领(Ling)叫(Jiao)电(Dian)导(Dao)。电(Dian)阻(Zu)值(Zhi)的(De)倒(Dao)数(Shu)就(Jiu)是(Shi)电(Dian)导(Dao), 用(Yong)字(Zi)母(Mu) G 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) S(西(Xi)门(Men)子(Zi) )。10、电(Dian)导(Dao)率(Lv):又(You)叫(Jiao)电(Dian)导(Dao)系(Xi)数(Shu)。是(Shi)衡(Heng)量(Liang)物(Wu)质(Zhi)导(Dao)电(Dian)性(Xing)能(Neng)好(Hao)坏(Huai)的(De)一(Yi)个(Ge)物(Wu)理(Li)量(Liang)。其(Qi)数(Shu)值(Zhi)大(Da)小(Xiao)是(Shi)电(Dian)阻(Zu)率(Lv)的(De)倒(Dao)数(Shu)。用(Yong)字(Zi)母(Mu) γ表(Biao)示(Shi),单(Dan) 位(Wei)为(Wei) S/m(西(Xi) /米(Mi) )。11、自(Zi)感(Gan):当(Dang)闭(Bi)合(He)回(Hui)路(Lu)中(Zhong)的(De)电(Dian)流(Liu)发(Fa)生(Sheng)变(Bian)化(Hua)时(Shi),由(You)这(Zhe)个(Ge)变(Bian)化(Hua)电(Dian)流(Liu)所(Suo)产(Chan)生(Sheng)的(De)、穿(Chuan)过(Guo)回(Hui)路(Lu)本(Ben)身(Shen)的(De)磁(Ci)通(Tong)随(Sui)之(Zhi)发(Fa)生(Sheng)变(Bian)化(Hua),在(Zai)这(Zhe)回(Hui)路(Lu)中(Zhong)将(Jiang)产(Chan)生(Sheng)感(Gan)生(Sheng)电(Dian)动(Dong)势(Shi),这(Zhe)种(Zhong)现(Xian)象(Xiang)称(Cheng)为(Wei)自(Zi)感(Gan)现(Xian)象(Xiang)。这(Zhe) 种(Zhong)感(Gan)生(Sheng)电(Dian)动(Dong)势(Shi)叫(Jiao)作(Zuo)自(Zi)感(Gan)电(Dian)动(Dong)势(Shi)。穿(Chuan)过(Guo)回(Hui)路(Lu)所(Suo)包(Bao)围(Wei)面(Mian)积(Ji) 的(De)磁(Ci)通(Tong)与(Yu)产(Chan)生(Sheng)此(Ci)磁(Ci)通(Tong)的(De)电(Dian)流(Liu)之(Zhi)间(Jian)的(De)比(Bi)例(Li)系(Xi)数(Shu),叫(Jiao)作(Zuo)回(Hui) 路(Lu)的(De)自(Zi)感(Gan)系(Xi)数(Shu),简(Jian)称(Cheng)自(Zi)感(Gan)。其(Qi)数(Shu)值(Zhi)等(Deng)于(Yu)单(Dan)位(Wei)时(Shi)间(Jian)内(Nei), 电(Dian)流(Liu)变(Bian)化(Hua)一(Yi)个(Ge)单(Dan)位(Wei)时(Shi)由(You)于(Yu)自(Zi)感(Gan)而(Er)引(Yin)起(Qi)的(De)电(Dian)动(Dong)势(Shi),用(Yong)字(Zi) 母(Mu) L 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) H(亨(Heng)利(Li) )。12、互(Hu)感(Gan):两(Liang)只(Zhi)相(Xiang)邻(Lin)线(Xian)圈(Quan),当(Dang)任(Ren)一(Yi)线(Xian)圈(Quan)中(Zhong)的(De)电(Dian)流(Liu)发(Fa)生(Sheng)变(Bian)化(Hua)时(Shi),则(Ze) 在(Zai)另(Ling)一(Yi)只(Zhi)线(Xian)圈(Quan)中(Zhong)产(Chan)生(Sheng)感(Gan)生(Sheng)电(Dian)动(Dong)势(Shi),这(Zhe)种(Zhong)电(Dian)磁(Ci)感(Gan)应(Ying)现(Xian)象(Xiang) 叫(Jiao)互(Hu)感(Gan)。由(You)此(Ci)产(Chan)生(Sheng)的(De)感(Gan)生(Sheng)电(Dian)动(Dong)机(Ji)势(Shi)称(Cheng)为(Wei)互(Hu)感(Gan)电(Dian)动(Dong)势(Shi)。用(Yong)字(Zi)母(Mu) M 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) H。电(Dian)感(Gan):自(Zi)感(Gan)与(Yu)互(Hu)感(Gan)的(De)统(Tong)称(Cheng)。13、电(Dian)容(Rong):凡(Fan)是(Shi)用(Yong)绝(Jue)缘(Yuan)介(Jie)质(Zhi)隔(Ge)开(Kai)的(De)两(Liang)个(Ge)导(Dao)体(Ti)就(Jiu)构(Gou)成(Cheng)了(Liao)一(Yi)个(Ge)电(Dian)容(Rong) 器(Qi)。两(Liang)个(Ge)极(Ji)板(Ban)在(Zai)单(Dan)位(Wei)电(Dian)压(Ya)作(Zuo)用(Yong)下(Xia)每(Mei)一(Yi)极(Ji)板(Ban)上(Shang)所(Suo)储(Chu)存(Cun)的(De)电(Dian)荷(He)量(Liang)叫(Jiao)作(Zuo)该(Gai)电(Dian)容(Rong)器(Qi)的(De)电(Dian)容(Rong),用(Yong)字(Zi)母(Mu) C 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) F(法(Fa)拉(La) ) 。14、感(Gan)抗(Kang):交(Jiao)流(Liu)电(Dian)流(Liu)过(Guo)具(Ju)有(You)电(Dian)感(Gan)的(De)电(Dian)路(Lu)时(Shi),电(Dian)感(Gan)有(You)阻(Zu)碍(Ai)交(Jiao)流(Liu)电(Dian)流(Liu) 过(Guo)的(De)作(Zuo)用(Yong), 这(Zhe)种(Zhong)作(Zuo)用(Yong)称(Cheng)为(Wei)感(Gan)抗(Kang), 用(Yong) XL 表(Biao)示(Shi), 单(Dan)位(Wei)为(Wei) Ω。15、容(Rong)抗(Kang):交(Jiao)流(Liu)电(Dian)流(Liu)过(Guo)具(Ju)有(You)电(Dian)容(Rong)的(De)电(Dian)路(Lu)时(Shi),电(Dian)容(Rong)有(You)阻(Zu)碍(Ai)交(Jiao)流(Liu)电(Dian)流(Liu) 过(Guo)的(De)作(Zuo)用(Yong), 这(Zhe)种(Zhong)作(Zuo)用(Yong)称(Cheng)为(Wei)容(Rong)抗(Kang), 用(Yong) XC 表(Biao)示(Shi), 单(Dan)位(Wei)为(Wei) Ω。16、阻(Zu)抗(Kang):交(Jiao)流(Liu)电(Dian)流(Liu)过(Guo)具(Ju)有(You)电(Dian)阻(Zu)、电(Dian)感(Gan)、电(Dian)容(Rong)的(De)电(Dian)路(Lu)时(Shi),它(Ta)们(Men)阻(Zu)碍(Ai)交(Jiao)流(Liu)电(Dian)流(Liu)通(Tong)过(Guo)的(De)作(Zuo)用(Yong)叫(Jiao)做(Zuo)阻(Zu)抗(Kang)。17、直(Zhi)流(Liu)电(Dian):大(Da)小(Xiao)和(He)方(Fang)向(Xiang)不(Bu)随(Sui)时(Shi)间(Jian)变(Bian)化(Hua)的(De)电(Dian)流(Liu)称(Cheng)为(Wei)直(Zhi)流(Liu)电(Dian),交(Jiao)流(Liu)电(Dian):大(Da)小(Xiao)和(He)方(Fang)向(Xiang)随(Sui)时(Shi)间(Jian)周(Zhou)期(Qi)性(Xing)变(Bian)化(Hua)的(De)电(Dian)流(Liu)称(Cheng)为(Wei)交(Jiao)流(Liu)电(Dian)。18、正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian):随(Sui)时(Shi)间(Jian)按(An)正(Zheng)弦(Xian)规(Gui)律(Lv)变(Bian)化(Hua)的(De)交(Jiao)流(Liu)电(Dian)流(Liu)称(Cheng)为(Wei)正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian)。非(Fei)正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian):随(Sui)时(Shi)间(Jian)不(Bu)按(An)正(Zheng)弦(Xian)规(Gui)律(Lv)变(Bian)化(Hua)的(De)交(Jiao)流(Liu)电(Dian)流(Liu)称(Cheng)为(Wei)非(Fei)正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian)。19、脉(Mai)动(Dong)直(Zhi)流(Liu)电(Dian):大(Da)小(Xiao)随(Sui)时(Shi)间(Jian)变(Bian)化(Hua)而(Er)方(Fang)向(Xiang)不(Bu)变(Bian)的(De)电(Dian)流(Liu)称(Cheng)为(Wei)脉(Mai)动(Dong)直(Zhi)流(Liu)电(Dian)。20、频(Pin)率(Lv):交(Jiao)流(Liu)电(Dian)流(Liu) 1s 内(Nei)电(Dian)流(Liu)方(Fang)向(Xiang)改(Gai)变(Bian)的(De)次(Ci)数(Shu)称(Cheng)为(Wei)频(Pin)率(Lv), 用(Yong)字(Zi)母(Mu) f 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) Hz(赫(He)兹(Zi) ) 。21、周(Zhou)期(Qi):交(Jiao)流(Liu)电(Dian)每(Mei)变(Bian)化(Hua)一(Yi)周(Zhou)所(Suo)需(Xu)的(De)时(Shi)间(Jian)称(Cheng)为(Wei)周(Zhou)期(Qi),用(Yong)字(Zi)母(Mu) T 表(Biao) 示(Shi),单(Dan)位(Wei)为(Wei) s(秒(Miao) ) 。22、瞬(Shun)时(Shi)值(Zhi):交(Jiao)流(Liu)电(Dian)在(Zai)任(Ren)一(Yi)瞬(Shun)间(Jian)的(De)值(Zhi)称(Cheng)为(Wei)瞬(Shun)时(Shi)值(Zhi), 用(Yong)小(Xiao)写(Xie)字(Zi)母(Mu)表(Biao)示(Shi), 如(Ru)i 、u 、e分(Fen)别(Bie)表(Biao)示(Shi)电(Dian)流(Liu)、电(Dian)压(Ya)及(Ji)电(Dian)动(Dong)势(Shi)的(De)瞬(Shun)时(Shi)值(Zhi)。23、最(Zui)大(Da)值(Zhi):瞬(Shun)时(Shi)值(Zhi)中(Zhong)的(De)最(Zui)大(Da)幅(Fu)度(Du)值(Zhi)称(Cheng)为(Wei)最(Zui)大(Da)值(Zhi),用(Yong)带(Dai)下(Xia)标(Biao) m 的(De)大(Da) 写(Xie)字(Zi)母(Mu)表(Biao)示(Shi),如(Ru)Im 、Um 、Em 分(Fen)别(Bie)表(Biao)示(Shi)电(Dian)流(Liu)、电(Dian)压(Ya)及(Ji)电(Dian)动(Dong)势(Shi)的(De)最(Zui)大(Da)值(Zhi)。24、有(You)效(Xiao)值(Zhi):如(Ru)某(Mou)一(Yi)交(Jiao)流(Liu)电(Dian)通(Tong)过(Guo)某(Mou)一(Yi)电(Dian)阻(Zu)经(Jing)过(Guo)一(Yi)定(Ding)时(Shi)间(Jian)所(Suo)产(Chan)生(Sheng)的(De)热(Re) 量(Liang),等(Deng)于(Yu)某(Mou)一(Yi)直(Zhi)流(Liu)电(Dian)通(Tong)过(Guo)同(Tong)一(Yi)电(Dian)阻(Zu)在(Zai)同(Tong)一(Yi)时(Shi)间(Jian)产(Chan)生(Sheng)的(De) 热(Re)量(Liang),则(Ze)该(Gai)直(Zhi)流(Liu)电(Dian)的(De)数(Shu)值(Zhi)即(Ji)称(Cheng)为(Wei)交(Jiao)流(Liu)电(Dian)的(De)有(You)效(Xiao)值(Zhi),即(Ji)交(Jiao)流(Liu)电(Dian)的(De)有(You)效(Xiao)值(Zhi)就(Jiu)是(Shi)与(Yu)它(Ta)的(De)热(Re)效(Xiao)应(Ying)相(Xiang)当(Dang)的(De)直(Zhi)流(Liu)值(Zhi)。用(Yong) 大(Da)写(Xie)字(Zi)母(Mu)I 、U 、E 分(Fen)别(Bie)表(Biao)示(Shi)电(Dian)流(Liu)、电(Dian)压(Ya)及(Ji)电(Dian)动(Dong)势(Shi)的(De)有(You)效(Xiao)值(Zhi)。25、平(Ping)均(Jun)值(Zhi):交(Jiao)流(Liu)电(Dian)的(De)平(Ping)均(Jun)值(Zhi)是(Shi)指(Zhi)某(Mou)段(Duan)时(Shi)间(Jian)内(Nei)流(Liu)过(Guo)电(Dian)路(Lu)的(De)总(Zong)电(Dian)荷(He)与(Yu)该(Gai)段(Duan)时(Shi)间(Jian)的(De)比(Bi)值(Zhi)。正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian)的(De)平(Ping)均(Jun)值(Zhi)通(Tong)常(Chang)指(Zhi)正(Zheng)半(Ban)周(Zhou)内(Nei)的(De)平(Ping)均(Jun)值(Zhi)。26、电(Dian)功(Gong):电(Dian)流(Liu)所(Suo)做(Zuo)的(De)功(Gong)叫(Jiao)电(Dian)功(Gong), 及(Ji)符(Fu)号(Hao) W 表(Biao)示(Shi), 单(Dan)位(Wei)为(Wei)J(焦(Jiao)耳(Er) )和(He)kW ·h(千(Qian)瓦(Wa) /时(Shi) ) 。27、电(Dian)功(Gong)率(Lv):单(Dan)位(Wei)时(Shi)间(Jian)(1s)电(Dian)流(Liu)所(Suo)做(Zuo)的(De)功(Gong)叫(Jiao)作(Zuo)电(Dian)功(Gong)率(Lv),用(Yong)符(Fu)号(Hao)P表(Biao)示(Shi)单(Dan)位(Wei)为(Wei)W或(Huo)kW。28、瞬(Shun)时(Shi)功(Gong)率(Lv):交(Jiao)流(Liu)电(Dian)路(Lu)中(Zhong)任(Ren)一(Yi)瞬(Shun)间(Jian)的(De)功(Gong)率(Lv)称(Cheng)为(Wei)瞬(Shun)时(Shi)功(Gong)率(Lv), 用(Yong)符(Fu)号(Hao) Pt 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) W 或(Huo) kW。29、有(You)功(Gong)功(Gong)率(Lv):正(Zheng)弦(Xian)交(Jiao)流(Liu)电(Dian)路(Lu)的(De)瞬(Shun)时(Shi)功(Gong)率(Lv)在(Zai)一(Yi)个(Ge)周(Zhou)期(Qi)内(Nei)的(De)平(Ping)均(Jun)值(Zhi),称(Cheng) 为(Wei)有(You)功(Gong)功(Gong)率(Lv),用(Yong)字(Zi)母(Mu) Pa 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) W 或(Huo) kW。30、视(Shi)在(Zai)功(Gong)率(Lv):电(Dian)流(Liu)I和(He)电(Dian)压(Ya) U 的(De)有(You)效(Xiao)值(Zhi)的(De)乘(Cheng)积(Ji)称(Cheng)为(Wei)视(Shi)在(Zai)功(Gong)率(Lv),用(Yong)字(Zi)母(Mu)S 或(Huo)Ps表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) V ·A 或(Huo) kV ·A。31、无(Wu)功(Gong)功(Gong)率(Lv):具(Ju)有(You)电(Dian)感(Gan)或(Huo)电(Dian)容(Rong)的(De)电(Dian)路(Lu)中(Zhong),在(Zai)半(Ban)周(Zhou)期(Qi)的(De)时(Shi)间(Jian)里(Li),电(Dian)源(Yuan) 的(De)能(Neng)量(Liang)变(Bian)成(Cheng)磁(Ci)场(Chang) (或(Huo)电(Dian)场(Chang) ) 的(De)能(Neng)量(Liang)储(Chu)存(Cun)起(Qi)来(Lai),而(Er)在(Zai)另(Ling)半(Ban) 周(Zhou)期(Qi)的(De)时(Shi)间(Jian)里(Li),又(You)把(Ba)储(Chu)存(Cun)在(Zai)磁(Ci)场(Chang) (或(Huo)电(Dian)场(Chang) ) 的(De)能(Neng)量(Liang)释(Shi)放(Fang) 出(Chu)来(Lai)送(Song)还(Huan)电(Dian)源(Yuan)。它(Ta)只(Zhi)与(Yu)电(Dian)源(Yuan)进(Jin)行(Xing)能(Neng)量(Liang)交(Jiao)换(Huan)而(Er)没(Mei)有(You)消(Xiao)耗(Hao)能(Neng)量(Liang)。与(Yu)电(Dian)源(Yuan)交(Jiao)换(Huan)能(Neng)量(Liang)的(De)速(Su)率(Lv)的(De)振(Zhen)幅(Fu)值(Zhi)叫(Jiao)作(Zuo)无(Wu)功(Gong)功(Gong)率(Lv), 用(Yong)字(Zi)母(Mu) Q 或(Huo) Pr 表(Biao)示(Shi),单(Dan)位(Wei)为(Wei) var(乏(Fa) ) 或(Huo) kvar(千(Qian)乏(Fa) )。32、功(Gong)率(Lv)因(Yin)数(Shu):有(You)功(Gong)功(Gong)率(Lv)与(Yu)视(Shi)在(Zai)功(Gong)率(Lv)的(De)比(Bi)值(Zhi)称(Cheng)为(Wei)功(Gong)率(Lv)因(Yin)数(Shu) cos φ。33、效(Xiao)率(Lv):能(Neng)量(Liang)在(Zai)转(Zhuan)换(Huan)或(Huo)传(Chuan)递(Di)的(De)过(Guo)程(Cheng)中(Zhong)总(Zong)要(Yao)消(Xiao)耗(Hao)一(Yi)部(Bu)分(Fen),即(Ji)输(Shu)出(Chu)小(Xiao)于(Yu)输(Shu)入(Ru),输(Shu)出(Chu)能(Neng)量(Liang)与(Yu)输(Shu)入(Ru)能(Neng)量(Liang)的(De)比(Bi)值(Zhi)叫(Jiao)作(Zuo)效(Xiao)率(Lv),用(Yong) 字(Zi)母(Mu) η表(Biao)示(Shi)。34、相(Xiang)电(Dian)压(Ya):三(San)相(Xiang)电(Dian)路(Lu)中(Zhong),相(Xiang)线(Xian)与(Yu)中(Zhong)性(Xing)线(Xian)之(Zhi)间(Jian)的(De)电(Dian)压(Ya)称(Cheng)为(Wei)相(Xiang)电(Dian)压(Ya)。线(Xian)电(Dian)压(Ya):三(San)相(Xiang)电(Dian)路(Lu)中(Zhong),相(Xiang)线(Xian)与(Yu)相(Xiang)线(Xian)之(Zhi)间(Jian)的(De)电(Dian)压(Ya)称(Cheng)为(Wei)线(Xian)电(Dian)压(Ya)。35、相(Xiang)电(Dian)流(Liu):三(San)相(Xiang)电(Dian)路(Lu)中(Zhong),流(Liu)过(Guo)每(Mei)相(Xiang)上(Shang)的(De)电(Dian)流(Liu)称(Cheng)为(Wei)相(Xiang)电(Dian)流(Liu)。线(Xian)电(Dian)流(Liu):三(San)相(Xiang)电(Dian)路(Lu)中(Zhong),三(San)根(Gen)端(Duan)线(Xian)中(Zhong)的(De)电(Dian)流(Liu)称(Cheng)为(Wei)线(Xian)电(Dian)流(Liu)。36、损(Sun)耗(Hao)电(Dian)场(Chang):把(Ba)电(Dian)荷(He)(或(Huo)带(Dai)电(Dian)体(Ti))引(Yin)入(Ru)其(Qi)他(Ta)带(Dai)电(Dian)体(Ti)周(Zhou)围(Wei)的(De)空(Kong)间(Jian)时(Shi),将(Jiang)会(Hui)受(Shou)到(Dao)力(Li)的(De)作(Zuo)用(Yong),就(Jiu)是(Shi)说(Shuo)在(Zai)带(Dai)电(Dian)体(Ti)周(Zhou)围(Wei)存(Cun)在(Zai)电(Dian)场(Chang)。37、电(Dian)场(Chang)强(Qiang)度(Du):表(Biao)示(Shi)电(Dian)场(Chang)强(Qiang)弱(Ruo)的(De)物(Wu)理(Li)量(Liang)。数(Shu)值(Zhi)上(Shang)等(Deng)于(Yu)单(Dan)位(Wei)正(Zheng)电(Dian)荷(He)在(Zai)该(Gai)点(Dian)处(Chu)所(Suo)受(Shou)的(De)作(Zuo)用(Yong)力(Li),方(Fang)向(Xiang)是(Shi)正(Zheng)电(Dian)荷(He)受(Shou)力(Li)的(De)方(Fang)向(Xiang)。用(Yong)字(Zi)母(Mu)E表(Biao)示(Shi),单(Dan)位(Wei)为(Wei)V/m。38、击(Ji)穿(Chuan):电(Dian)介(Jie)质(Zhi)在(Zai)电(Dian)场(Chang)的(De)作(Zuo)用(Yong)下(Xia)发(Fa)生(Sheng)剧(Ju)烈(Lie)放(Fang)电(Dian)或(Huo)导(Dao)电(Dian)的(De)现(Xian)象(Xiang)叫(Jiao)击(Ji)穿(Chuan), 绝(Jue)缘(Yuan)强(Qiang)度(Du)又(You)称(Cheng)击(Ji)穿(Chuan)电(Dian)场(Chang)强(Qiang)度(Du)。39、介(Jie)电(Dian)常(Chang)数(Shu):表(Biao)示(Shi)物(Wu)质(Zhi)绝(Jue)缘(Yuan)能(Neng)力(Li)特(Te)性(Xing)的(De)一(Yi)个(Ge)系(Xi)数(Shu),用(Yong)字(Zi)母(Mu)ε表(Biao)示(Shi),单(Dan)位(Wei)为(Wei)F/m 。相(Xiang)对(Dui)介(Jie)质(Zhi)常(Chang)数(Shu):任(Ren)一(Yi)物(Wu)质(Zhi)的(De)介(Jie)电(Dian)常(Chang)数(Shu)ε与(Yu)真(Zhen)空(Kong)介(Jie)电(Dian)常(Chang)数(Shu)ε0的(De)比(Bi)值(Zhi)称(Cheng)为(Wei)相(Xiang)对(Dui)介(Jie)质(Zhi)常(Chang)数(Shu),用(Yong)符(Fu)号(Hao)εr表(Biao)示(Shi)。

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