短語(yǔ)詞組短語(yǔ)retention time ratio 保留時(shí)間比率risk retention Capacity Ratio 風(fēng)險(xiǎn)自留能力比率;險(xiǎn)自留能力比率relative retention ratio 相對(duì)保持率Client retention ratio 客戶保留率warmth retention ratio 保暖率capacity retention ratio 容量保持率viscosity retention ratio 粘度保留率strength retention ratio 強(qiáng)度保留率 返回 retention ratio