- 安全系數(shù)
- factor: n. 1.〔英國(guó)〕經(jīng)銷人；(代客買賣收取傭金的)經(jīng)紀(jì)人； ...
- a urance: 擔(dān)保；保險(xiǎn)；轉(zhuǎn)易；轉(zhuǎn)易書; 確信；保證；保險(xiǎn)；自信; 轉(zhuǎn)易書
- a urance coefficient: 安全系數(shù)
- a urance of interest: 權(quán)益的轉(zhuǎn)易
- caseoftrialofsecondi urance: 二審案件
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