two-stage pump的意思|示意

双级泵 ... 双级开关two-pole switch 双级泵two-stage pump 双向通讯two-way communication ...

二级泵 二级泵 two-stage pump 前级泵 back pump; backing pumpe; forepump ..

两级泵 二级泵 two-stage pump 两级泵 two speed pump; two stage pump; two-speed pump; two-stage (two-speed) pump; two-stage pump

翻译 ... tunnel resistor翻译 【电】 隧道电阻器 two-stage pump翻译 【化】 两级泵 top secret翻译 【计】 绝密 ...