If your servers are pooled in a compute cluster, the head node is the only crucial machine; the rest can start and stop and crash freely.

如果服务器部署在计算机集群中，那么最前端的节点是惟一的关键机器；其他机器可以随意启动和停止，崩溃了也不要紧。

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They crash through the tree line and suddenly stop in their tracks.

他们冲过树木的边缘，突然停住了他们的脚步。

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When a panic takes place, it brings the system to a stop (and thus can be considered a controlled crash).

当发生panic时，它将导致系统停止(因此可看成是一种可控制的崩溃)。

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At the scene of a car crash, you stop the bleeding before discussing policies about cell phones in cars.

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When airlines have a bad crash, they stop advertising for a bit.

ECONOMIST: With friends like these

The pilot had to wield an emergency-crash ax to stop him.

CNN: Pilots Packing Heat