Titlebook: Water Resources and Control Processes; Volume 4 Lawrence K. Wang,Norman C. Pereira Book 1986 The HUMANA Press Inc. 1986 Filtration.Groundwa

Onerous

Vulnerary

Control of Reservoirs and Lakes,, their bodily wastes were widely dispersed and created little problem. There were no concentrated industries and no industrial wastes. When an animal was killed for its food, its hide was also used for clothing, the fine bones were used as needles, the intestines and blood vessels were used as thre

athlete’s-foot

两栖动物

Deep-Well Disposal,p solve environmental problems. A national goal established by Congress in the Clean Water Act of 1972 (PL 92–500) was to cease all discharges of pollutants to navigable waters by 1985 [10]. The capacities of surface waters to receive effluents without violating existing water quality standards is d

道学气

Irrepressible

justify

Chemical Control of Pests and Vectors,uce sickness or death if its concentration is high enough. Thus even nutrients can become poisons. For example, copper, which is highly toxic to all forms of plant life, is an essential element for plant growth at the trace level [1].

superfluous

Kidnap

摘要