环境保护

·水污染 water pollution   (2007-09-17)
·水质污染指数 water pollution index(WPI)   (2007-09-17)
·水质监测 water quality monitoring   (2007-09-17)
·水资源 water resources   (2007-09-17)
·水的硬度 hardness of water   (2007-09-17)

·石棉肺 asbestosis   (2007-09-17)
·石油污染 petroleum pollution   (2007-09-17)
·石灰软化法   (2007-09-17)
·砂滤 sand filtering   (2007-09-17)
·土壤污染 soil pollution   (2007-09-17)

·卫生标准 sanitary standard   (2007-09-17)
·物理吸附 physical absorption   (2007-09-17)
·物理性污染 physical pollution   (2007-09-17)
·脱硫 desulfurization   (2007-09-17)
·消声 noise elimination   (2007-09-17)

·消声器 muffler,silencer   (2007-09-17)
·污水 sewage   (2007-09-17)
·污水三级处理 tertiary treatment of waste water   (2007-09-17)
·污水二级处理 middle class treatment of waste wa..   (2007-09-17)
·污水一级处理 lower class treatment of waste wat..   (2007-09-17)

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