常見(jiàn)例句雙語(yǔ)例句The utility model relates to the field of gas compression, liquid transportation and vacuum-pumping, in particular to a rotary compression machine with a translatory piston.本實(shí)用新型涉及在氣體壓縮、流體輸送和抽真空領(lǐng)域，尤其涉及一種具有 平動(dòng)活塞的旋轉(zhuǎn)壓縮機(jī)械。ip.com 返回 translatory field