basic obligations
相关英语词汇推荐
- granulate
- exhaust emission(s)
- Freon 504
- mulch
- environmental management of nuclear energy
- chlorinated paraffin
- photoprotection
- heavy-duty vehicle
- wet meadows
- lead-free
- fuel metering
- SOTWE,State of the World Environment
- World Radiation Network
- circulating fluidized bed combustor
- environmental police
- atmospheric chemistry
- allyl chlorocarbonate
- ozone control
- flow pattern of the atmosphere
- deposition