| |||
chemical deposit | |||
chemical sedimentation | |||
chemical sediment | |||
chemogenic sediment |
化学沉积物 : 22 phrases in 9 subjects |
Automobiles | 1 |
Desert science | 4 |
Ecology | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Geology | 1 |
Oil / petroleum | 2 |
Technology | 10 |
Transport | 1 |