汽油分馏塔第二层塔填料堵塞，全塔气-液传热传质状况恶化，使水降至塔釜引起“暴釜”，最终导致急冷油泵气蚀不上量。
Because the packings on the second plate were blocked by polymer, water from the reflux pump condensed and entered into the bottom of the tower to cause the cavitation of the pump.
北美西部晚坎帕阶的暴龙类化石记录在北部地区的落基山脉（蒙大拿州，艾伯塔）和西南地区（新墨西哥州，犹他州）依然有地理上差距。
The fossil record of late Campanian tyrannosauroids of western North America has a geographic gap between the Northern Rocky Mountain Region (Montana, Alberta) and the Southwest (New Mexico, Utah).
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