In electric power plants and substations, a detection of DC system ground fault was usually completed in hand manner, which is very much trouble and danger.

在发电厂和变电所内，直流系统接地故障的检测，过去一直采用手动方式来完成。

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Solving the equation system, we can obtain the electric potential value on nodes. According to these value, the apparent resistivity on ground surface can be calculated.

解方程组，得各节点的电位值，由此可计算地表的视电阻率。

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Equipped with position and backrest angle adjustable spring seats, manual/electric integrated tilting system cab, can absorb vibration from the ground and improve comfort for driving.

配置可调节前后位置及靠背角度的减震座椅，手电一体可翻转宽体驾驶室悬浮支撑，自动吸收路面振动，大大提高驾驶舒适性。

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