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地下水污染 dìxiàshuǐwūrǎn
agric.	ground-water pollution
anim.husb.	underground water pollution
ecol.	ground water pollution; subsurface water pollution
eng.geol.	pollution of ground water
environ.	groundwater pollution Contamination of any water found under the earth's surface by any leaching pollutants, such as inorganic compounds (chlorides, nitrates, heavy metals, etc.), synthetic organic chemicals (pesticides, fertilizers, etc.) and pathogens (bacteria, parasites, etc.) (地表下任何水体受到污染物，如无机化合物(氯化物、硝酸盐、重金属等)、合成有机化学物质(农药、肥料等)及病原体(细菌、寄生虫等)等渗漏的污染。)
hydroel.st.	pollution of groundwater
oil	groundwater contamination
space	groundwater pollution
water.res., ecol.	contamination of groundwater

地 下 水污染: 72 phrases in 7 subjects

Earth sciences	1
Ecology	2
Engineering geology	2
Space	1
Technology	53
United Nations	1
Water resources	12