在我国北方地区具有丰富的野生资源，极具有开发利用潜力。
It has a potential development in North China where there are rich wildlife resources.
在我国北方地区的渠道衬砌工程中，存在着因基土冻胀而造成的衬砌破坏问题。
In the canal lining projects in the northern part of China exist some problems concerning lining damage which is caused by frost heave.
它主要用于地下水位比较低的地区，在我国北方地区尤其是北京、河北等地广泛应用。
It is used widely in the northern regions where underground water level is lower such as Beijing and Hebei province.
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