n.多間隔選擇 multi-span option: 多間隔選擇multi span: 連棟multi span structure: 多跨結(jié)構(gòu)multi-span beam: 多跨連續(xù)梁multi-span greenhouse: 連棟溫室下載手機(jī)詞典可隨時隨地查詞查翻譯