四极质谱计 quadrupole mass spectrometer
- 用四极质谱计来测量放电前后杂质的变化。
A quadrupole mass spectrometer is used to measure the changes in impurities before and after the discharge. - 它对四极质谱计的用户如何保养仪器有重要的参考价值。
This is of worthy of a paper for user of QMS, it was shown how maintain instrument. - 四极质谱计在真空技术中可用来测量分压强,从事物质成分的分析。
Quadrupole mass spectrometer can be used in measuring pressure of dividing and analysis composition of material.