pre-cleaning

pre-cleaning

美 　英

• 网络预清洗；预清理；前清洗

例句

Is there objective evidence that the pre cleaning chemistries are being analyzed by the laboratory at the documented frequency?

是否有客观证据说明前处理化学药水有被化验室按照文件规定的程序进行分析？

Good pre-cleaning with high-pressure water and soap increases the effectiveness of the phosphating operation.

用高压水及皂液进行良好的预清洗能提高磷化作业效果。

the use of pre-cleaning the substrate surface, if there are cracks to use putty or water filled mud.

使用前清洁基材表面，如果有裂缝要用腻子或水泥浆填平。

Testing methods for grain pre-cleaning machine

粮食初清筛试验方法