血清封闭因子,血清阻断因子block: n. 1.片,块,大块;粗料,毛料;木料;石料;金属块; ...factor: n. 1.〔英国〕经销人;(代客买卖收取佣金的)经纪人; ...blocking factor: 分块系数; 封闭性因子; 封闭因子; 封锁因素; 区块因子,编块因子; 组块因子bf blocking factor: 块因子blocking factor(bf): 编段因素下载手机词典可随时随地查词查翻译