如果测试是在活动的系统上进行的，应该计划相应的时间以修复测试可能导致的任何破坏，例如路由器或硬盘故障。
If this is a live system, plan time to repair any damage a test may cause, such as a failed router or hard disk.
瞬时cookie除在用户断开与服务器的连接时被破坏或在某一段预设的时间内不活动之外，与其它的cookie是一样的。
A transient cookie is like any other with the exception that it is destroyed once the user disconnects from the server or is inactive for some preset time.
飞行器被破坏的危险性随着暴露时间的增大而增加。
The risk of damaging the vehicles increases as the exposure time increases.
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