8分钟一个操作员注意到二次回路备用水泵的阀门是关的，于是打开了阀门。二次回路现在运作正常。
8 min An operator notices that the valves for the backup pumps in the secondary loop are off. He opens the valves. The secondary side now operating normally.
4秒二次回路中的备用水泵自动启动。
4 SEC Backup pumps within the secondary loop automatically turn on.
研究表明，采用水下涂料和排水护套法对钢管桩进行二次维护是行之可效的。
The investigations show that the secondary maintenance for steel pipe piles by the methods of underwater coating and drainage covering ia an effective measures.
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