结合RD 4000管线探测仪在实际工作中常遇到的近间距并行管线、多电缆管道、非金属管线等探测难题，进行探讨和总结。
It probes and summarizes the use of this device with multiple real world pipeline detecting examples like the close distance parallel pipelines, multi - cable pipelines, and nonmetal pipelines.
结合RD 4000管线探测仪在实际工作中常遇到的近间距并行管线、多电缆管道、非金属管线等探测难题，进行探讨和总结。
It probes and summarizes the use of this device with multiple real world pipeline detecting examples like the close distance parallel pipelines, multi - cable pipelines, and nonmetal pipelines.
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