The only way of overcoming the problem is by opting for dedicated earthing to the machine and by regular maintenance of earth pit.
避免这个问题的唯一方法是选择机床专用的接地线并定期维护接地点。
Pit mud nutrient fluid, ma DE by Hyperconcentration caproate bacteria liquid, was applied in the maintenance of new pits and aged pits.
将超浓缩复合己酸菌液制成窖泥培养液，应用于新窖老熟和复壮老化窖池。
This has extremely vital significance for production of open-pit mine and maintenance safety of operating personnel and the equipment.
这对指导露天矿的生产和维护作业人员及设备的安全具有十分重要的意义。
It is difficult to maintenance the wire communication device in the pit because the ground is wet, cable corrosion is serious and sign al is bad.
由于煤矿井下地面潮湿，电缆腐蚀严重，信号不好，有线通信装置维护困难。
Yeomans Series 9235 dry-pit submersible pumps provide rugged solids-handling pump construction and a quality, low maintenance, patented closed-loop cooling system .
约曼9235系列干井潜水泵是固体颗粒污水处理泵，其结构坚固耐用，质量优异，维护成本低，并配置专利技术的闭环冷却系统。
Disadvantages: high cost of foundation pit, in case of heavy rain, easy water, installation, maintenance and maintenance needs to be completed in the foundation.
【缺点】：基坑费用高，遇强降雨天气，易积水，安装，维修和保养需要在基础内部完成。
The selected caproic acid bacteria could then be used in the maintenance of artificial pit mud and the operation of sand cast technique and pit irrigation technique.
可将选育出的己酸菌用于人工窖泥、窖池泥养护、翻沙材料及灌窖工艺中。
The selected caproic acid bacteria could then be used in the maintenance of artificial pit mud and the operation of sand cast technique and pit irrigation technique.
可将选育出的己酸菌用于人工窖泥、窖池泥养护、翻沙材料及灌窖工艺中。
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