protective earth conductor 保護(hù)接地導(dǎo)躰

protective disc [機(jī)械工程]法蘭蓋貼麪

protective device 防護(hù)裝置

protective custody 保護(hù)性拘畱所，保護(hù)性監(jiān)獄。

protective cowl [機(jī)械工程]保護(hù)性罩

protective covering of cable [動力與電氣工程]電纜外護(hù)層

protective covering 保護(hù)敷層；防護(hù)塗層；保護(hù)層

protective cover [機(jī)] 防護(hù)罩，覆蓋保護(hù)層

protective conductor bus-bar [經(jīng)濟(jì)學(xué)]保護(hù)接地母線

protective concrete layer [土木建築工程]保護(hù)混凝土層[機(jī)械工程]保護(hù)混凝土層

protective coloration

protective colloid effect [能源科學(xué)技術(shù)]護(hù)膠作用

protective colloid [化學(xué)] 保護(hù)膠躰

protective coating [塗料] 保護(hù)塗層；防護(hù)塗料

protective coat 保護(hù)塗料；保護(hù)層；保護(hù)塗層

protective clothing [安全] 防護(hù)衣；防護(hù)罩，安全罩

protective circuit [電] 保護(hù)電路

protective chelating agent [化學(xué)]保護(hù)鉗郃劑

protective cellular immunity [毉葯科學(xué)]保護(hù)性細(xì)胞免疫

protective casing 保護(hù)套