rotary system of drilling
相关英语词汇推荐
- volcanic ejecta
- discharge hydrograph
- old plate tectonics
- sial
- temperature barrier
- limonite
- acid geochemical barrier
- rock terrace
- soil subtype
- ala twin
- artificial radioactive element
- descloizite
- ferganite
- speciation
- cuesta
- organoclay
- layering of relief
- precision processing
- Suspended solids
- greenwich meridian