但相当程度上这些恢复只是周期性的。
其它国家也经历过同样的周期,并最终恢复到了更好的状态。
Other countries have gone through the same cycle and emerged in a better condition.
膜的清洗周期为5天左右,清洗后膜水通量恢复至膜初始水通量水平的90%以上。
The cleaning period was about 5 days, and the recovery was more than 90% after cleaning.
信息系统整个生命周期的防御和恢复。
Information assurance emphases on the defense and restore between the whole life-cycle of the system.
信息系统整个生命周期的防御和恢复。
Information assurance emphases on the defense and restore between the whole life-cycle of the system.
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