pneumatic control valve
[石油英汉词典]
pneumatic control valven.气动控制阀
是什么意思,pneumatic control valve的解释,pneumatic control valve的翻译
[新英汉石油技术词典] pneumatic control valve
[船舶英汉词典] pneumatic control valve
[进出口英汉词典] pneumatic control valve
[造纸英汉词典] pneumatic control valve