他是目前100米和200米长池蛙泳世界记录保持者，也是400米接力长池和短池的世界纪录保持者。
He is the current world record holder in the 100 and 200 LCM breaststroke, as well as in the 400 LCM and SCM medley relay.
较大日志缓冲池的不利之处是，紧急事故恢复所花的时间可能要稍微长一点。
The downside of a larger log buffer is that crash recovery can take slightly longer.
但是传统的活性污泥法工艺存在工艺流程长、污水停留时间长、单位面积处理能力低、反应池占地面积大、污泥膨胀等缺点。
But the conventional activated sludge process technology has some shortcomings: long water residence time, low processing power per unit area, large area reactor, sludge bulking and so on.
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