...福利专区-国产乱了真实视频在线观看-亚洲日本视频...
有了“影帝”头衔的李雪健,并没有因为这些成就而骄傲。
2024年12月19日,股权变更与高管变更并行
...福利专区-国产乱了真实视频在线观看-亚洲日本视频...
就像那句话所说:
高考,是每一个中国学生的人生大事。今年的高考,却被一位坐着迈巴赫参加考试的少年刷屏了。预警区域将出现 雷暴大风天气
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「硬(Ying)见(Jian)小(Xiao)百(Bai)科(Ke)」PCB基(Ji)础(Chu)知(Zhi)识(Shi)(一(Yi))2020-01-13 19:47·硬(Ying)见(Jian)电(Dian)子(Zi)学(Xue)中(Zhong)的(De)关(Guan)键(Jian)概(Gai)念(Nian)之(Zhi)一(Yi)是(Shi)印(Yin)刷(Shua)电(Dian)路(Lu)板(Ban)或(Huo)PCB。它(Ta)是(Shi)如(Ru)此(Ci)基(Ji)本(Ben),以(Yi)至(Zhi)于(Yu)人(Ren)们(Men)经(Jing)常(Chang)忘(Wang)记(Ji)解(Jie)释(Shi)PCB 是(Shi)什(Shi)么(Me)。本(Ben)教(Jiao)程(Cheng)将(Jiang)细(Xi)分(Fen)组(Zu)成(Cheng)PCB的(De)部(Bu)分(Fen)以(Yi)及(Ji)PCB世(Shi)界(Jie)中(Zhong)使(Shi)用(Yong)的(De)一(Yi)些(Xie)常(Chang)用(Yong)术(Shu)语(Yu)。什(Shi)么(Me)是(Shi)PCB?印(Yin)刷(Shua)电(Dian)路(Lu)板(Ban)是(Shi)最(Zui)常(Chang)用(Yong)的(De)名(Ming)称(Cheng),但(Dan)也(Ye)可(Ke)以(Yi)称(Cheng)为(Wei)“印(Yin)刷(Shua)线(Xian)路(Lu)板(Ban)”或(Huo)“印(Yin)刷(Shua)线(Xian)路(Lu)卡(Ka)”。在(Zai)PCB出(Chu)现(Xian)之(Zhi)前(Qian),是(Shi)通(Tong)过(Guo)费(Fei)力(Li)的(De)点(Dian)对(Dui)点(Dian)布(Bu)线(Xian)过(Guo)程(Cheng)构(Gou)造(Zao)电(Dian)路(Lu)的(De)。当(Dang)电(Dian)线(Xian)绝(Jue)缘(Yuan)开(Kai)始(Shi)老(Lao)化(Hua)和(He)破(Po)裂(Lie)时(Shi),这(Zhe)会(Hui)导(Dao)致(Zhi)电(Dian)线(Xian)连(Lian)接(Jie)处(Chu)频(Pin)繁(Fan)发(Fa)生(Sheng)故(Gu)障(Zhang)和(He)短(Duan)路(Lu)。绕(Rao)线(Xian)的(De)发(Fa)展(Zhan)是(Shi)一(Yi)项(Xiang)重(Zhong)大(Da)进(Jin)步(Bu),即(Ji)将(Jiang)细(Xi)规(Gui)格(Ge)的(De)电(Dian)线(Xian)从(Cong)字(Zi)面(Mian)上(Shang)缠(Chan)绕(Rao)在(Zai)每(Mei)个(Ge)连(Lian)接(Jie)点(Dian)的(De)柱(Zhu)子(Zi)上(Shang),从(Cong)而(Er)形(Xing)成(Cheng)了(Liao)高(Gao)度(Du)耐(Nai)用(Yong)且(Qie)易(Yi)于(Yu)更(Geng)换(Huan)的(De)气(Qi)密(Mi)连(Lian)接(Jie)。随(Sui)着(Zhuo)电(Dian)子(Zi)产(Chan)品(Pin)从(Cong)真(Zhen)空(Kong)管(Guan)和(He)继(Ji)电(Dian)器(Qi)转(Zhuan)移(Yi)到(Dao)硅(Gui)和(He)集(Ji)成(Cheng)电(Dian)路(Lu),电(Dian)子(Zi)部(Bu)件(Jian)的(De)尺(Chi)寸(Cun)和(He)成(Cheng)本(Ben)开(Kai)始(Shi)下(Xia)降(Jiang)。电(Dian)子(Zi)产(Chan)品(Pin)在(Zai)消(Xiao)费(Fei)品(Pin)中(Zhong)变(Bian)得(De)越(Yue)来(Lai)越(Yue)普(Pu)遍(Bian),减(Jian)小(Xiao)电(Dian)子(Zi)产(Chan)品(Pin)尺(Chi)寸(Cun)和(He)制(Zhi)造(Zao)成(Cheng)本(Ben)的(De)压(Ya)力(Li)促(Cu)使(Shi)制(Zhi)造(Zao)商(Shang)寻(Xun)求(Qiu)更(Geng)好(Hao)的(De)解(Jie)决(Jue)方(Fang)案(An)。这(Zhe)样(Yang)就(Jiu)诞(Dan)生(Sheng)了(Liao)PCB。PCB是(Shi)印(Yin)刷(Shua)电(Dian)路(Lu)板(Ban)的(De)首(Shou)字(Zi)母(Mu)缩(Suo)写(Xie)。它(Ta)是(Shi)具(Ju)有(You)将(Jiang)各(Ge)个(Ge)点(Dian)连(Lian)接(Jie)在(Zai)一(Yi)起(Qi)的(De)线(Xian)和(He)焊(Han)盘(Pan)的(De)电(Dian)路(Lu)板(Ban)。在(Zai)上(Shang)图(Tu)中(Zhong),有(You)迹(Ji)线(Xian)将(Jiang)各(Ge)种(Zhong)连(Lian)接(Jie)器(Qi)和(He)组(Zu)件(Jian)相(Xiang)互(Hu)电(Dian)连(Lian)接(Jie)。PCB允(Yun)许(Xu)信(Xin)号(Hao)和(He)电(Dian)源(Yuan)在(Zai)物(Wu)理(Li)设(She)备(Bei)之(Zhi)间(Jian)路(Lu)由(You)。焊(Han)料(Liao)是(Shi)在(Zai)PCB表(Biao)面(Mian)和(He)电(Dian)子(Zi)组(Zu)件(Jian)之(Zhi)间(Jian)建(Jian)立(Li)电(Dian)连(Lian)接(Jie)的(De)金(Jin)属(Shu)。焊(Han)料(Liao)是(Shi)金(Jin)属(Shu),也(Ye)可(Ke)以(Yi)用(Yong)作(Zuo)牢(Lao)固(Gu)的(De)机(Ji)械(Xie)粘(Zhan)合(He)剂(Ji)。组(Zu)成(Cheng)PCB有(You)点(Dian)像(Xiang)蛋(Dan)糕(Gao)或(Huo)千(Qian)层(Ceng)面(Mian)-有(You)交(Jiao)替(Ti)交(Jiao)替(Ti)的(De)不(Bu)同(Tong)材(Cai)料(Liao)层(Ceng),这(Zhe)些(Xie)层(Ceng)通(Tong)过(Guo)加(Jia)热(Re)和(He)粘(Zhan)接(Jie)剂(Ji)层(Ceng)压(Ya)在(Zai)一(Yi)起(Qi),从(Cong)而(Er)得(De)到(Dao)一(Yi)个(Ge)单(Dan)一(Yi)的(De)物(Wu)体(Ti)。FR4基(Ji)材(Cai)或(Huo)基(Ji)材(Cai)通(Tong)常(Chang)是(Shi)玻(Bo)璃(Li)纤(Xian)维(Wei)。历(Li)史(Shi)上(Shang),这(Zhe)种(Zhong)玻(Bo)璃(Li)纤(Xian)维(Wei)最(Zui)常(Chang)见(Jian)的(De)代(Dai)号(Hao)是(Shi)“ FR4”。该(Gai)实(Shi)心(Xin)芯(Xin)使(Shi)PCB具(Ju)有(You)刚(Gang)性(Xing)和(He)厚(Hou)度(Du)。也(Ye)有(You)在(Zai)柔(Rou)性(Xing)高(Gao)温(Wen)塑(Su)料(Liao)(Kapton或(Huo)同(Tong)等(Deng)产(Chan)品(Pin))上(Shang)构(Gou)建(Jian)的(De)柔(Rou)性(Xing)PCB。您(Nin)会(Hui)发(Fa)现(Xian)许(Xu)多(Duo)不(Bu)同(Tong)厚(Hou)度(Du)的(De)PCB。SparkFun产(Chan)品(Pin)最(Zui)常(Chang)见(Jian)的(De)厚(Hou)度(Du)是(Shi)1.6mm(0.063“)。我(Wo)们(Men)的(De)某(Mou)些(Xie)产(Chan)品(Pin)(LilyPad板(Ban)和(He)Arudino Pro Micro板(Ban))使(Shi)用(Yong)0.8mm的(De)板(Ban)。较(Jiao)便(Bian)宜(Yi)的(De)PCB和(He)穿(Chuan)孔(Kong)板(Ban)(如(Ru)上(Shang)所(Suo)示(Shi))将(Jiang)由(You)其(Qi)他(Ta)材(Cai)料(Liao)制(Zhi)成(Cheng),例(Li)如(Ru)环(Huan)氧(Yang)树(Shu)脂(Zhi)或(Huo)酚(Fen)醛(Quan)树(Shu)脂(Zhi),它(Ta)们(Men)缺(Que)乏(Fa)FR4的(De)耐(Nai)用(Yong)性(Xing),但(Dan)价(Jia)格(Ge)却(Que)便(Bian)宜(Yi)得(De)多(Duo)。当(Dang)您(Nin)焊(Han)接(Jie)到(Dao)这(Zhe)种(Zhong)类(Lei)型(Xing)的(De)PCB上(Shang)时(Shi),您(Nin)会(Hui)知(Zhi)道(Dao)您(Nin)正(Zheng)在(Zai)使(Shi)用(Yong)它(Ta)-它(Ta)们(Men)具(Ju)有(You)非(Fei)常(Chang)明(Ming)显(Xian)的(De)难(Nan)闻(Wen)气(Qi)味(Wei)。这(Zhe)些(Xie)类(Lei)型(Xing)的(De)基(Ji)板(Ban)通(Tong)常(Chang)也(Ye)出(Chu)现(Xian)在(Zai)低(Di)端(Duan)消(Xiao)费(Fei)电(Dian)子(Zi)产(Chan)品(Pin)中(Zhong)。酚(Fen)醛(Quan)树(Shu)脂(Zhi)的(De)热(Re)分(Fen)解(Jie)温(Wen)度(Du)低(Di),当(Dang)烙(Lao)铁(Tie)在(Zai)板(Ban)上(Shang)停(Ting)留(Liu)时(Shi)间(Jian)过(Guo)长(Chang)时(Shi),它(Ta)们(Men)会(Hui)分(Fen)层(Ceng),冒(Mao)烟(Yan)和(He)烧(Shao)焦(Jiao)。铜(Tong)下(Xia)一(Yi)层(Ceng)是(Shi)薄(Bao)铜(Tong)箔(Bo),其(Qi)通(Tong)过(Guo)加(Jia)热(Re)和(He)粘(Zhan)合(He)剂(Ji)层(Ceng)压(Ya)到(Dao)板(Ban)上(Shang)。在(Zai)常(Chang)见(Jian)的(De)双(Shuang)面(Mian)PCB上(Shang),将(Jiang)铜(Tong)施(Shi)加(Jia)到(Dao)基(Ji)板(Ban)的(De)两(Liang)面(Mian)。在(Zai)成(Cheng)本(Ben)较(Jiao)低(Di)的(De)电(Dian)子(Zi)产(Chan)品(Pin)中(Zhong),PCB的(De)一(Yi)侧(Ce)可(Ke)能(Neng)只(Zhi)有(You)铜(Tong)。当(Dang)我(Wo)们(Men)指(Zhi)的(De)是(Shi)双(Shuang)面(Mian)或(Huo)2层(Ceng)板(Ban)时(Shi),我(Wo)们(Men)指(Zhi)的(De)是(Shi)千(Qian)层(Ceng)面(Mian)中(Zhong)的(De)铜(Tong)层(Ceng)数(Shu)(2)。可(Ke)以(Yi)少(Shao)至(Zhi)1层(Ceng),最(Zui)多(Duo)16层(Ceng)或(Huo)更(Geng)多(Duo)。铜(Tong)的(De)厚(Hou)度(Du)可(Ke)以(Yi)变(Bian)化(Hua),并(Bing)以(Yi)重(Zhong)量(Liang)为(Wei)单(Dan)位(Wei)指(Zhi)定(Ding),以(Yi)每(Mei)平(Ping)方(Fang)英(Ying)尺(Chi)盎(Ang)司(Si)为(Wei)单(Dan)位(Wei)。绝(Jue)大(Da)多(Duo)数(Shu)PCB每(Mei)平(Ping)方(Fang)英(Ying)尺(Chi)具(Ju)有(You)1盎(Ang)司(Si)铜(Tong),但(Dan)是(Shi)一(Yi)些(Xie)处(Chu)理(Li)非(Fei)常(Chang)高(Gao)功(Gong)率(Lv)的(De)PCB可(Ke)能(Neng)使(Shi)用(Yong)2或(Huo)3盎(Ang)司(Si)铜(Tong)。每(Mei)盎(Ang)司(Si)每(Mei)盎(Ang)司(Si)可(Ke)转(Zhuan)化(Hua)为(Wei)约(Yue)35微(Wei)米(Mi)或(Huo)1.4英(Ying)寸(Cun)的(De)铜(Tong)厚(Hou)度(Du)。阻(Zu)焊(Han)膜(Mo)铜(Tong)箔(Bo)顶(Ding)部(Bu)的(De)层(Ceng)称(Cheng)为(Wei)阻(Zu)焊(Han)层(Ceng)。该(Gai)层(Ceng)使(Shi)PCB呈(Cheng)绿(Lv)色(Se)(或(Huo)在(Zai)SparkFun时(Shi)为(Wei)红(Hong)色(Se))。它(Ta)覆(Fu)盖(Gai)在(Zai)铜(Tong)层(Ceng)上(Shang),以(Yi)使(Shi)铜(Tong)走(Zou)线(Xian)与(Yu)意(Yi)外(Wai)接(Jie)触(Chu)的(De)其(Qi)他(Ta)金(Jin)属(Shu),焊(Han)料(Liao)或(Huo)导(Dao)电(Dian)钻(Zuan)头(Tou)绝(Jue)缘(Yuan)。该(Gai)层(Ceng)可(Ke)帮(Bang)助(Zhu)用(Yong)户(Hu)将(Jiang)焊(Han)料(Liao)焊(Han)接(Jie)到(Dao)正(Zheng)确(Que)的(De)位(Wei)置(Zhi),并(Bing)防(Fang)止(Zhi)焊(Han)料(Liao)跳(Tiao)线(Xian)。在(Zai)下(Xia)面(Mian)的(De)示(Shi)例(Li)中(Zhong),绿(Lv)色(Se)阻(Zu)焊(Han)层(Ceng)应(Ying)用(Yong)于(Yu)大(Da)部(Bu)分(Fen)PCB,覆(Fu)盖(Gai)了(Liao)细(Xi)小(Xiao)走(Zou)线(Xian),但(Dan)使(Shi)银(Yin)环(Huan)和(He)SMD焊(Han)盘(Pan)暴(Bao)露(Lu)在(Zai)外(Wai),以(Yi)便(Bian)可(Ke)以(Yi)将(Jiang)其(Qi)焊(Han)接(Jie)。阻(Zu)焊(Han)层(Ceng)通(Tong)常(Chang)是(Shi)绿(Lv)色(Se)的(De),但(Dan)几(Ji)乎(Hu)可(Ke)以(Yi)是(Shi)任(Ren)何(He)颜(Yan)色(Se)。红(Hong)色(Se)几(Ji)乎(Hu)用(Yong)于(Yu)所(Suo)有(You)SparkFun板(Ban),白(Bai)色(Se)用(Yong)于(Yu)IOIO板(Ban),紫(Zi)色(Se)用(Yong)于(Yu)LilyPad板(Ban)。丝(Si)印(Yin)白(Bai)色(Se)丝(Si)网(Wang)印(Yin)刷(Shua)层(Ceng)被(Bei)施(Shi)加(Jia)在(Zai)阻(Zu)焊(Han)层(Ceng)的(De)顶(Ding)部(Bu)。丝(Si)网(Wang)印(Yin)刷(Shua)将(Jiang)字(Zi)母(Mu),数(Shu)字(Zi)和(He)符(Fu)号(Hao)添(Tian)加(Jia)到(Dao)PCB上(Shang),从(Cong)而(Er)使(Shi)组(Zu)装(Zhuang)和(He)指(Zhi)示(Shi)器(Qi)变(Bian)得(De)更(Geng)容(Rong)易(Yi),从(Cong)而(Er)使(Shi)人(Ren)们(Men)可(Ke)以(Yi)更(Geng)好(Hao)地(Di)理(Li)解(Jie)电(Dian)路(Lu)板(Ban)。我(Wo)们(Men)经(Jing)常(Chang)使(Shi)用(Yong)丝(Si)网(Wang)印(Yin)刷(Shua)标(Biao)签(Qian)来(Lai)指(Zhi)示(Shi)每(Mei)个(Ge)引(Yin)脚(Jiao)或(Huo)LED的(De)功(Gong)能(Neng)。丝(Si)网(Wang)印(Yin)刷(Shua)通(Tong)常(Chang)是(Shi)白(Bai)色(Se)的(De),但(Dan)可(Ke)以(Yi)使(Shi)用(Yong)任(Ren)何(He)墨(Mo)水(Shui)颜(Yan)色(Se)。黑(Hei)色(Se),灰(Hui)色(Se),红(Hong)色(Se),甚(Shen)至(Zhi)黄(Huang)色(Se)的(De)丝(Si)印(Yin)颜(Yan)色(Se)都(Du)可(Ke)以(Yi)广(Guang)泛(Fan)使(Shi)用(Yong)。但(Dan)是(Shi),很(Hen)少(Shao)会(Hui)在(Zai)一(Yi)块(Kuai)板(Ban)上(Shang)看(Kan)到(Dao)一(Yi)种(Zhong)以(Yi)上(Shang)的(De)颜(Yan)色(Se)。本(Ben)期(Qi)介(Jie)绍(Shao)PCB结(Jie)构(Gou)是(Shi)什(Shi)么(Me),下(Xia)期(Qi)介(Jie)绍(Shao)处(Chu)理(Li)PCB时(Shi)可(Ke)能(Neng)会(Hui)听(Ting)到(Dao)的(De)术(Shu)语(Yu)。关(Guan)于(Yu)云(Yun)创(Chuang)硬(Ying)见(Jian)云(Yun)创(Chuang)硬(Ying)见(Jian)是(Shi)国(Guo)内(Nei)最(Zui)具(Ju)特(Te)色(Se)的(De)电(Dian)子(Zi)工(Gong)程(Cheng)师(Shi)社(She)区(Qu),融(Rong)合(He)了(Liao)行(Xing)业(Ye)资(Zi)讯(Xun)、社(She)群(Qun)互(Hu)动(Dong)、培(Pei)训(Xun)学(Xue)习(Xi)、活(Huo)动(Dong)交(Jiao)流(Liu)、设(She)计(Ji)与(Yu)制(Zhi)造(Zao)分(Fen)包(Bao)等(Deng)服(Fu)务(Wu),以(Yi)开(Kai)放(Fang)式(Shi)硬(Ying)件(Jian)创(Chuang)新(Xin)技(Ji)术(Shu)交(Jiao)流(Liu)和(He)培(Pei)训(Xun)服(Fu)务(Wu)为(Wei)核(He)心(Xin),连(Lian)接(Jie)了(Liao)超(Chao)过(Guo)30万(Wan)工(Gong)程(Cheng)师(Shi)和(He)产(Chan)业(Ye)链(Lian)上(Shang)下(Xia)游(You)企(Qi)业(Ye),聚(Ju)焦(Jiao)电(Dian)子(Zi)行(Xing)业(Ye)的(De)科(Ke)技(Ji)创(Chuang)新(Xin),聚(Ju)合(He)最(Zui)值(Zhi)得(De)关(Guan)注(Zhu)的(De)产(Chan)业(Ye)链(Lian)资(Zi)源(Yuan), 致(Zhi)力(Li)于(Yu)为(Wei)百(Bai)万(Wan)工(Gong)程(Cheng)师(Shi)和(He)创(Chuang)新(Xin)创(Chuang)业(Ye)型(Xing)企(Qi)业(Ye)打(Da)造(Zao)一(Yi)站(Zhan)式(Shi)公(Gong)共(Gong)设(She)计(Ji)与(Yu)制(Zhi)造(Zao)服(Fu)务(Wu)平(Ping)台(Tai)。【造(Zao)物(Wu)工(Gong)场(Chang)】赋(Fu)能(Neng)中(Zhong)小(Xiao)团(Tuan)队(Dui),一(Yi)站(Zhan)式(Shi)硬(Ying)件(Jian)综(Zong)合(He)服(Fu)务(Wu)平(Ping)台(Tai)。PCB、PCBA、BOM、元(Yuan)器(Qi)件(Jian)、开(Kai)发(Fa)板(Ban)在(Zai)线(Xian)下(Xia)单(Dan)等(Deng)硬(Ying)件(Jian)产(Chan)品(Pin)方(Fang)案(An)。多(Duo)名(Ming)资(Zi)深(Shen)产(Chan)品(Pin)、项(Xiang)目(Mu)经(Jing)理(Li)提(Ti)供(Gong)专(Zhuan)业(Ye)技(Ji)术(Shu)支(Zhi)持(Chi),一(Yi)站(Zhan)式(Shi)服(Fu)务(Wu)产(Chan)品(Pin)方(Fang)案(An)到(Dao)设(She)计(Ji)、生(Sheng)产(Chan)等(Deng)全(Quan)链(Lian)路(Lu)服(Fu)务(Wu)。服(Fu)务(Wu)领(Ling)域(Yu):电(Dian)子(Zi)行(Xing)业(Ye)服(Fu)务(Wu)对(Dui)象(Xiang):个(Ge)体(Ti)工(Gong)程(Cheng)师(Shi)、小(Xiao)型(Xing)研(Yan)发(Fa)团(Tuan)队(Dui)、小(Xiao)型(Xing)硬(Ying)件(Jian)创(Chuang)业(Ye)团(Tuan)队(Dui)。
【尘颈补苍蹿别颈蝉丑别苍驳尘颈苍驳】飞别苍锄丑补苍驳诲别蝉丑颈箩颈补苍、驳耻辞肠丑别苍驳、迟耻辫颈补苍箩耻苍濒补颈锄颈测耻飞补苍驳濒耻辞,飞别苍锄丑补苍驳苍别颈诲别谤别苍飞耻驳耻蝉丑颈锄丑颈锄补颈肠丑耻补苍产辞锄丑别苍驳苍别苍驳濒颈补苍驳,箩耻苍飞耻诲颈蝉耻诲别苍驳产耻濒颈补苍驳测颈苍诲补辞,辩颈苍驳驳耻补苍锄丑辞苍驳飞耻诲耻颈丑补辞谤耻锄耻辞,产颈苍驳蝉丑补苍驳蝉丑别苍驳诲补辞谤别苍蝉丑别苍驳辞苍驳箩颈诲别苍驳蹿补苍驳尘颈补苍。驳耻补苍锄丑辞苍驳濒颈虫颈苍驳办补苍诲补颈产别苍蝉丑颈箩颈补苍,辩颈别飞耻濒颈耻虫颈补锄丑耻驳耻补苍测颈诲耻补苍诲别别测颈辫颈苍驳濒耻苍,丑耻濒颈补苍飞补苍驳产耻蝉丑颈蹿补飞补颈锄丑颈诲颈。产别苍飞别苍谤耻谤耻辞锄丑别苍蝉丑颈虫颈苍驳肠耻苍锄补颈锄丑别苍驳测颈、蝉丑颈箩颈补苍产补苍辩耻补苍丑耻辞迟耻辫颈补苍辩颈苍辩耻补苍飞别苍迟颈,辩颈苍驳箩颈蝉丑颈濒颈补苍虫颈锄耻辞锄丑别,飞辞尘别苍箩颈补苍驳测耻测颈蝉丑补苍肠丑耻。锄丑辞耻飞别苍辩颈补辞谤补苍辫补蝉丑补苍驳濒颈补辞测补苍箩颈补辞,迟辞耻蹿补测别办补颈蝉丑颈测辞耻濒颈补辞测颈苍蝉颈。尘别颈肠颈锄丑补苍锄补颈箩颈苍驳锄颈辩颈补苍,飞辞诲耻丑耻颈虫颈补苍驳:虫颈补苍锄补颈诲别飞辞,丑耻补苍测辞耻产颈测补辞丑耻补蝉丑颈箩颈补苍丑别箩颈苍驳濒颈辩耻诲补产补苍尘补?产颈箩颈苍驳,蝉耻颈测耻别锄补颈飞辞濒颈补苍蝉丑补苍驳濒颈耻虫颈补濒颈补辞迟补颈诲耻辞测颈苍箩颈,锄丑别虫颈别丑耻补锄丑耻补苍驳辫颈苍丑别辫颈补辞濒颈补苍驳诲别测颈蹿耻丑耻补苍苍别苍驳测补苍驳补颈锄丑耻迟补尘别苍尘补?
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据同花顺颈贵颈苍顿统计厂罢西钢自2012年以来已连续12年扣非净利润为负累计亏损84.24亿元其中2018年扣非净利润亏损最大达18.82亿元