近几年，山前地区的油气勘探受到广泛的关注。
Recent years, and gas exploration in piedmont areas is widely concentrated.
近几年，山前地区的油气勘探受到广泛的关注。
Recent years, oil and gas exploration in piedmont areas is widely concentrated.
共计划分出十三个水文地质单元：1）阿尔泰山及其山前地区；
Thirteen hydrogeological units have been put forward: 1)Altai and its pediment region;
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