当然，该物件可藉 由该顶掣件顶推伸置于该涡电流装置内部的位置，以便针对该物件特 定部份进行检测作业，亦能有效提升检测速度。

Of course, the objects can be propped to positions inside the eddy current device through the propping element to detect specific parts of the objects, and the detection speed can also be improved.

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本推进装置可在不破坏道路、建筑物的情况下，将管道直接从地面下顶推穿过。

The propelling device can directly push the pipeline to pass through the ground surface under the condition of no destruction on roads or buildings.

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