In practice, asphalt-colloid smear was formed on copper electric parts and effectively purged by means of thermal neutralization with strong acid and alkali.

　
英 美
  • 分析銅質(zhì)導電零件瀝青膠質(zhì)油污的形成,在生產(chǎn)實(shí)際中采用強酸強堿熱態(tài)中和法,有效地去除膠質(zhì)油污。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan