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