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