利用这个探头，配合地面电位测试装置，能够方便地测量地下管道的各种参数，确保地下管道长期安全运行。
Utilizing this probe, combining surface potential measuring device, various parameters of underground pipe can be conveniently measured, insuring them safely working in a long time.
利用这个探头，配合地面电位测试装置，能够方便地测量地下管道的各种参数，确保地下管道长期安全运行。
Utilizing this probe, combining surface potential measuring device, various parameters of underground pipe can be conveniently measured, insuring them safely working in a long time.
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