| 摘要 |
A detector for detecting the passage of heavy objects on a roadway, wherein the detector is an elongate strip in the form of nested channel-section members, said members comprising, from the outside towards the inside a first channel section bar (1) made of a strong material; a second channel section bar (2) made of a shock-absorbing material embedded in the channel of said first bar; a third channel section bar (3) made of a strong material embedded in the channel of said second bar; and a sensor (4) embedded in the channel of said third bar.
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