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