Traces of surface corrosives are, however, necessary for the chem. ical reaction to take place.

少量的表面锈蚀是漆膜的化学反应发生的必要条件。

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Traces of surface corrosives are, however, necessary for the chem. ical reaction to take place.

少量的表面锈蚀是漆膜的化学反应发生的必要条件。

youdao