题目内容
下列关于层流净化,正确的是
2021-10-14
A.可保持稳定的净化气流使微粒不沉降,不蓄积
B.层流分为垂直层流和水平层流
C.常用于100级洁净区
D.洁净区的净化为层流净化
E.层流净化区域应与万级净化区域相邻
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