可能会提供其他的钻井服务，如维修或拆除现有水井结构，电梯井钻井和水力极钻井。
May provide other drilling services, such as repair or dismantling of existing water well structure, elevator shaft drilling and hydro pole drilling.
如果停用的时间较长，就应把水泵从井中提出来，进行维修、除锈、涂油及换件，组装后入库保存。
If a longer time out, it should be made to pump from the Wells to carry out maintenance, rust, coating for oil and parts, after assembly storage preservation.
检查井的沉降给社会带来很大危害，且每年用于维修检查井的费用也在递增。
The hazard of our society has been introduced by settlement of inspection chamber in road, and the fee of maintenance and overhaul are incrementing every year.
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