单词	trench box
释义	trench box trench box, trench shield trench box A heavily braced box of wood or steel which can be moved along a trench bottom as excavation and pipe laying
随便看	lsef lseg lseh lsei lsel l selectin l-selectin l-selectin ligand sulfotransferase lsem lsema lsems lsen lseos lsep lseps lsepsi lseq lser l-serine l-serine ammonia-lyase l-serine dehydratase lserp lsers lses lsesc

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