Well, what I mean is the area is very hilly, mountainous in parts.

好吧，我的意思是这是一个多丘陵，部分多山的地区。

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Firstly, the research area is divided into three districts according to the physiognomy and the terrain: the northwest low mountainous area, north hilly area and northeast low mountainous area.

首先在空间上依据地形、地貌划分出三个区域：西北部低中山区、北部丘陵区和东北部低中山区。

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Drill rig and its accessory tools were developed to meet the technical requirements of drilling Geo physical blast holes in soil and rock among mountainous and hilly area in China.

为满足我国山地丘陵地区物探爆破孔施工技术的要求，研究适合土层、岩层钻进用的钻机及工具，对钻机的配套设备进行了开发研究。

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