短语词组短语box -frame 箱框box section frame 箱式断面梁组成的车架box spring frame assembler 发条盒框架安装员box well frame 箱式井架box x frame motor 箱架电动机box type frame 箱状车架;箱形架box latticed frame 箱形网架box beam frame structure 纵梁箱形框架 返回 box frame