基本释义:

预防步骤

网络释义

1)precautionary step,预防步骤

2)process,predefined,预定步骤

3)preparation step,预处理步骤

4)engine running preventive maintenance procedure,发动机运转预防性保养步骤

5)The method of four steps,四步骤预测法

6)three steps in pretreatment,预处理三步骤