英语词汇“四极[真空]阀”的翻译、意思、用法、释义-英汉汉英词典

单词	四极[真空]阀
释义	四极[真空]阀four electrode valve
随便看	practical piece practical politics practical profession practical range practical--range practical rationality practical reactor practical--reactor practical reason practical reasoning practical residue limit practicals practical salinity practical salinity scale practical salinity unit｛=psu｝ practical scale practical shooting practical significance practical skill practical skills practical stability practical standard practical storage time practical system practical test