“cleaning agent and pre-membrane agent”的概念、定义、翻译、参考文献-科学参考

单词	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。
随便看	pump for hot bituminous binders pump frequency pumping pumping irrigation and drainage pumping irrigation and drainage in China pumping irrigation and drainage of planning pumping lamp pumping Lemma pumping lemma pumping level pumping light pumping loss pumping mechanism pumping mechanism of the heart pumping process pumping resistance pumping source pumping start mode of pumped-storage unit pumping station pumping station with axial-flow pumps pumping station with centrifugal pumps pumping station with mixed flow pumps pumping station with submersible pumps pumping station with tubular pumps pumping station with turbine pumps

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