回炉煤气主管压力
pressure of recycled gas in main-pipe
pressure of recycled coal gas
气体静压轴承－主轴系统
aerostatic bearing-spindle system
大气压气暖法
atmospheric steam heating
电气-气压法
electro-pneumatic operated valve
高、低压压气机转子
rotor of high-pressure or low-pressure compressor