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