梁 梁的英文 英语翻译 bridge; girder; roof beambeam; girder 拓展翻译 连续梁continuous beam梁钢joist steel梁规beam compass; trammels梁架beam梁间距beam spacing; case bay梁跨距beam span梁上君子thief梁式天平beam balance梁式引线beam lead梁式引线集成电路beam lead integrated circuit梁形引线beam lead梁状铁camacite淋巴结小梁trabeculae of lymph node颅小梁trabeculae cranii