gravel bed filter
相关英语词汇推荐
- aromatic
- temperature inversion
- alkyne
- ITF,IPCC Trust Fund
- alterant
- organohalogen compound
- ozone reduction
- polyaromatic hydrocarbon
- partially halogenatedb CFC
- aerosol (spray-)can
- plankton
- pollution control industry
- advisor
- Environmental Protection Agency (EPA)
- exhaust heat
- technological items
- containment (of solid wastes)
- higher layers (of the stratosphere)
- trade-off
- automative air conditioning