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土(tu)(tu)壓平衡式頂管是以土(tu)(tu)壓平衡為工(gong)作(zuo)原理的(de)一種頂管施工(gong)方法.在工(gong)作(zuo)時,通過大刀(dao)盤及仿形刀(dao)盤對機頭正面(mian)土(tu)(tu)體的(de)全端(duan)面(mian)切削(xue),利用主…

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