According to Baidu, the vacuum degree of Shimadzu temperament should reach -5 power of 10. GC-MS can only work normally if it reaches -5 power of 10.
GC-MS refers to GC-MS, a machine that extracts atmospheric pressure. Gas chromatography-mass spectrometer refers to an instrument that combines gas chromatograph and mass spectrometer.
(1) What is the content of the qualification examination for acupuncturists?
The international examination for the qualification of a