质谱仪测量 meaning in English

mass-spectrometer measurement

Standard test method for trace metallic impurities in high purity copper by high - mass - resolution glow discharge mass spectrometer
使用高质量分辨率辉光放电质谱仪测量高纯度铜中痕量金属杂质的标准试验方法
Standard test method for trace metallic impurities in electronic grade aluminum - copper , aluminum - silicon , and aluminum - copper - silicon alloys by high - mass - reduction glow discharge mass spectrometer
用高质量减少辉光放电质谱仪测量电子级铝铜铝硅和铝铜硅中微量金属杂质的标准试验方法