基本解释坡管口 坡口加工端英汉例句双语例句Precision machined beveled gate end provides long life of seating components.精密机械加工的斜面闸板端使得阀座部件使用寿命更长。词组短语短语BLF beveled long end 大端开坡口Beveled end BE 坡口端B - eveled End-eveled End 两端为坡口端