短語(yǔ)詞組短語(yǔ)counter -pressure casting machine 壓差鑄造機(jī)counter r pressure turbine 背壓式汽輪機(jī)PNEUMATIC COUNTER -PRESSURE CONE 氣動(dòng)反壓力錐vacuum counter -pressure casting 真空差壓鑄造 返回 counter pressure