Unsaturated Soil Water Flow Problems 非饱和土壤水流问题
Seveal Problems Concerning Soil Water 节水农业中土壤水研究有关问题的探讨
One of the most serious problems is the serious pollution of air, water and soil.
其中最严重的问题是严重污染的空气,水和土壤。
Australia has thus experienced the accompanying problems of water, soil, and air pollution near its cities.
澳大利亚也因此遭受了随之而来的,城市附近水质、土壤和空气污染的问题。
Water and soil erosion is one of the prominent ecological environment problems of Haihe River Basin.
水土流失是海河流域较为突出的生态环境问题之一。
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