ballasts的精选

当前位置 /首页/ballasts的精选/列表
用“ballasts”造句大全，ballasts造句

用“ballasts”造句大全，ballasts造句

2017-06-21
Also,someballastsmanufacturedafter1978containPCBsorthecarcinogenicchemicalDEHP.Usedfortestingthetransistorsofelectronicballasts,energy-savinglamps.Railwayapplications-Rollingstock-D.C.suppliedelectron...