preemptv.以优先购买权获得;先占;(桥牌中)先发制人地叫牌;优先;取代
preemption bit抢先位
preemption act先买法
preempt search抢先搜索
preempt segment抢占段
preemption tone优先占用音
preemptive audit先行审计
preemptive model[计] 抢先模型
preemptive share优先股; 红利先取股
preemptive right股票先买权,优先购股权
preemption right优先购买权