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cleaning agent and pre-membrane agent
释义
cleaning agent and pre-membrane agent
Encyclopedia
工学
清洗剂和预膜剂
释
cleaning agent and pre-membrane agent
清洗剂和预膜剂
一类具有清洗作用的溶解性化学品称为是清洗剂。在金属表面清洗后加入一定量的水溶解性化合物,能在金属表面预先形成保护膜的一类化学品,称为预膜剂,也称为钝化预膜剂。
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foreign arbitral award
foreign atom
foreign banks in modern China
foreign bibliography science
foreign bodies in external acoustic meatus
foreign bodies in larynx,trachea and bronchi
foreign bodies in the esophagus
foreign bodies of larynx
foreign body embolism
foreign body granuloma
foreign body in nasal cavity and sinus
foreign body in trachea and bronchia
foreign capital
foreign correspondent
foreign criminal law
foreign currency obligation judgment
foreign demand
Foreign Diaspora
foreign direct investment
foreign economic and trade system reform
foreign enclave
Foreign Environmental Cooperation Center, Ministry of Ecology and Environment of the People's Republic of China
foreigners' neighborhood
foreigners’street
foreign exchange control
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