primary purification circuit 主净化回路
primary purification 初步精制 ; 一次提纯
primary purification detail 一次净化
primary purification system 一回净化系统
primary water purification plant 一次水净化装置 ; 一回路水净化装置
Although HTML V5 respects its origins from former versions of HTML, purification is not a primary goal.
虽然HTML V 5宣称源于上一html版本，但其主要目标不是纯粹性。
The primary technology processes are many scales of countercurrent extraction, vacuum concentration, a drop purification and vacuum drying in low temperature.
工艺主要流程为茶汤预处理后的多级逆流萃取、真空浓缩、纯化沉析、低温真空干燥。
The index of livability primary refers to the quality of atmosphere. To improve submarine's livability must take the measure to carry on the purification and the management to the atmosphere.
改善潜艇的居住性，必须采取措施对舱室空气进行净化和治理，对主要气体污染成分进行准确测量是采取净化措施必须首先解决的问题。
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