投影光法 projected light beam: 投影光束projected benefit costs method: 預(yù)期成本效益法light on method: 亮燈法projected: 被預(yù)測(cè),被估計(jì); 計(jì)劃中的伸出的投影的; 設(shè)計(jì); 伸出式窗; 投射; 投影的alternating light method: 兩光交換法下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯