This tool is used in the demonstration to simulate a failure on the primary server and make a switch to the secondary server.

演示中使用该工具模拟主服务器上的一个故障，并切换到备用服务器。

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The value of this resistor is chosen such that, in the event of device failure, the short circuit current will not exceed the maximum current specification of the relays on either set of switch cards.

该电阻器的阻值要保证被测装置发生故障时的短路电流不会超过开关卡上任一组继电器的最大电流指标。

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Based on the principle and state feedback, failure phenomenon of switch valve in thermal power stations is investigated, and fault analysis steps are concluded in detail.

从动作原理和状态反馈这两个回路入手。分析本公司热电站快速启闭阀的故障现象，并对故障分析步骤作了详细总结。

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Ferguson made another switch during the interval, sending on Carlos Tevez for the ineffective Anderson, a positive move that reflected United's failure to build on their early domination.

BBC: Barcelona 2-0 Man Utd