... drown-proofing 浮水法〔利用人体浮力长时间浮在水面上的技巧〕。 dust proofing 防尘处理 error proofing 防错法 ...
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dust-proofing agent for apparel 衣物防尘剂
Dust-proofing Agent PD 防尘剂PD
dust-proofing of petroleum coke 防止石油焦炭变成粉末
dust-proofing agent [纺] 防尘剂
A novel dust proofing agent for dyestuff was prepared by the addition of industrial fatty acid and glycol epoxide, which could produce a kind of emulsor.
采用工业脂肪酸和环氧乙烷加成法研制成乳化剂，进而获得一种新型染料防尘剂。
Exterior activator is ramification of emulsifying agent, dust - proofing agent, hydrous lanolin .
表面活性剂是乳化剂、 防尘剂、 含水羊毛脂衍生物。
Safety devices full safety cover for noise - suppression and dust - proofing. Emergency stop button.
安全装置全机体安全护盖，可防尘及减低噪音，紧急停机开关。
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