國內線纜業的狀況怎么樣？
UL電(dian)(dian)(dian)子(zi)線(xian)(xian)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)用來傳(chuan)送電(dian)(dian)(dian)(磁)能(neng)(neng)，信息和達到電(dian)(dian)(dian)磁能(neng)(neng)量替換的(de)線(xian)(xian)材制品。從(cong)廣義上來說電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)也叫做為(wei)電(dian)(dian)(dian)纜(lan)(lan)。從(cong)狹義上來說的(de)它就(jiu)是(shi)不通電(dian)(dian)(dian)的(de)電(dian)(dian)(dian)纜(lan)(lan)。它可以(yi)定義成為(wei)：由(you)下面(mian)部(bu)分構成的(de)集合(he)體：一根或是(shi)數根絕緣的(de)線(xian)(xian)芯(xin)，還有(you)它們自己可能(neng)(neng)具有(you)的(de)包覆(fu)層(ceng)(ceng)，總保護層(ceng)(ceng)及(ji)外護層(ceng)(ceng)。電(dian)(dian)(dian)纜(lan)(lan)業能(neng)(neng)夠有(you)增加還沒有(you)絕緣的(de)導(dao)體。
2023-07-19
