Request metrics provide a mechanism to trace the flow of execution of a single request through the system, and measure the processing time at each step of that flow.

请求度量提供了一种机制，用于跟踪单个请求在通过系统时的执行流，并度量执行流中每一步骤的处理时间。

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To aim at the research on cutting direction in NC machining of free-form surfaces, a simplified time model for tool trace is established, and the system of tool path programming is discussed.

针对自由曲面走刀方向数控加工的研究，建立了简化的刀具轨迹时间模型，并对路径规划的系统进行了讨论。

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Wherefore real-time trace voltage flicker 'envelope and initial phase Angle proceed with possess important theory sense and practical meaning among power system.

因此对电力系统中的电压闪变的包络线与初相角进行实时跟踪就具有重要的理论意义和现实意义。

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