4 SEC Backup pumps within the secondary loop automatically turn on.
4秒二次回路中的备用水泵自动启动。
2
0 SEC the pumps in the secondary loop shut down automatically, due to a slight malfunction.
0秒二次回路中的水泵因为一个小故障而自动关闭。
3
The SEC investigation's outcome might ruffle some Facebook feathers — and even cause secondary market valuations to fall — but will not directly precipitate an IPO.