Preegn.普里格PREabbr.Petroleum Refining Engineer炼油工程师pre-hydrotreater预加氢反应器Pre - attributes前置定语Pre neutralization预中和pre-spark period[化] 前火花期Pre - S deletion前S基因缺失preamplifier tuner前置放大器调谐器pre-decode stage预译码阶段prewarning ability预警能力premanillary teeth[医] 上切牙； 上颌前牙precrosslinked gel预交联凝胶