Httperf. Httperf is a tool for measuring web server performance.

httperf：这个工具能够用来测量Web服务性能。

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Httperf is a tool for measuring Web server performance.

Httperf是一个用来度量Web服务器性能的工具。

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Performance of the coated tool and non-coated tool in cutting process is analyzed through measuring durability of the indexable insert turning tool and cutting force (torsional moment) of tap.

介绍了涂层刀具与未涂层刀具在切削加工中的性能比较及试验研究。主要通过不重磨车刀的耐用度及丝锥的切削力（扭矩）等因素来展开试验分析。

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