胃空肠吻合口闭合术 closure of gastro-jejunostomy相关短语 closure algebra 闭包代数 closure dam 合龙坝 closure relation 闭包关系 error of closure 闭合差 existential closure 存在闭包 force closure 力锁合 catenation closure 耦合闭包 closure of simplex 单形的闭包 closure of track 线路封闭 invert closure 仰拱...