beam span梁跨: girder span距: distance跨距: [工业] span; spread; spacing; strided distance; track◇跨距长度 length of span; 跨距中心 centre of span梁跨度: beam span桥梁跨度: bridge span下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:梁跨距，即可在微信中查询翻译
