Prebeln.普雷贝尔PREabbr.Petroleum Refining Engineer炼油工程师pre-engaged starter预啮合起动机preformed repair rods预绞丝修补条predetermined harmony天生协调preliminry discussion浅论prefabrication method分段装配法, 预制件法premehed refining slag预熔精炼渣pre-mixed combustion预混燃烧premarital examination婚前检查precast liquid missile预装式液体导弹precast wall structure预制墙板结构