| |||
number of particles | |||
number of particle |
颗粒数 : 40 phrases in 14 subjects |
Agriculture | 1 |
Automobiles | 1 |
Desert science | 1 |
Drilling | 1 |
Earth sciences | 1 |
Ecology | 2 |
Engineering geology | 2 |
General | 1 |
Geology | 1 |
Isolation | 1 |
Metallurgy | 3 |
Mining | 1 |
Oil / petroleum | 1 |
Technology | 23 |