短語(yǔ)詞組短語(yǔ)junction n plate 連接板junction gusset plate 接點(diǎn)板junction steel plate 連接鋼板upper junction plate 上連接板bottom bomm bar junction plate 下弦節(jié)點(diǎn)連結(jié)板plate junction 板塊結(jié)合帶 返回 junction plate