混合冷剂制冷
mixed refrigerant refrigeration
制冷剂冷凝器和安装件总成
Condenser & MTG GP refrigerant
化学废物的贮存
storage of chemical waste
应课税货品的贮存
storage of dutiable goods
有关贮存的区域方法
zone method of associative storage
最优捕获控制的存在性
existence of the optimal control
电子液位器的的制作
Making of Electric Liquid Level Meter
计算机控制的制造系统
computer controlled manufacture system
甲醛消除喷雾剂的制备
Preperation of catching formaldehyde spraying agent