摆动活塞式膨胀压缩机
swinging piston typed expansion compressor
滚动活塞式膨胀压缩机
Rolling Piston Expander-compressor
活塞式膨胀机
reciprocating expansion-engine
通货膨胀膨胀调整系数
automatic direction finding equipment
压缩机膨胀机一体型
Combination of compressor and expander
计量活塞机构
measurement plunger mechanism