试题与答案

杜邦装置冷冻机采用()形式压缩机。A、螺杆式 B、离心式 C、活塞式 D、涡旋式

题型:单项选择题

题目:

杜邦装置冷冻机采用()形式压缩机。

A、螺杆式

B、离心式

C、活塞式

D、涡旋式

答案:

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