彈性線法 elastic method: 彈性階段設(shè)計(jì)法elastic line: 彈性曲線; 彈性索; 彈性線elastic line (line of deflection): 彈性曲線elastic center method: 彈性中心法elastic centre method: 彈性中心法下載手機(jī)詞典可隨時隨地查詞查翻譯