| |||
chemi-ionizationCI | |||
chemi-ionization | |||
chemical ionization |
化学电离 : 45 phrases in 10 subjects |
Aviation | 3 |
Chemistry | 1 |
Earth sciences | 6 |
Electronics | 8 |
General | 2 |
Metallurgy | 1 |
Oil processing plants | 4 |
Polymers | 1 |
Technology | 15 |
Water resources | 4 |