... 管道系统；管道输送；管道铺设 piping 管道布置 piping arrangement 管道桥 piping bridge ...
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piping across bridge 管线过桥
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The break-up of the gas piping, the letting out of liquefied petroleum gas, the bursting of the running water pipe, calamity accident caused in subside of road surface and bridge,etc.
煤气管道破裂、液化石油气泄漏、自来水爆裂、路面桥梁塌陷等引起的灾害事故；
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