短語詞組短語box -girder installation 箱梁安裝Box type girder 箱型梁box nose girder 箱形導(dǎo)梁box stiffening girder 箱形加勁梁crane box -girder 起重機(jī)箱形主梁composite box -girder 組郃箱梁box curve girder bridge 箱型曲線梁橋30m box -girder m箱梁 返回 box girder