It's necessary to consider fully the influence of groundwater environment system and all kinds of hydrogeochemistry balance to the migrating of pollutant.
一个合理的地下水水质模型必须充分考虑地下水环境系统和各种水文地球化学平衡对污染迁移的影响，这在数学处理上是个难点。
The groundwater environment system of the costal zone is a complicated system which includes the freshwater environment, the tide environment and the salt-fresh water environment system.
海岸带附近的地下水环境系统是容淡水环境、海水潮汐环境、咸淡水混合环境为一体的复杂系统。
In recent years, for the activity of the human has been more and more continually which caused the research of the groundwater environment system of the costal zone became a focus of the academe.
近些年来，由于人类活动在该地区日益深入频繁，使得对海岸带地下水环境的研究更是成为了当今学术界的热点和焦点。
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