它是一个加工能力比率Cpk=min{Cpl，Cpu}，其显示出该能力是目标中心并优于CP.因此，人们通常将CP和CPK一起使用，并尝试理解其加工能力。

It‘s a process capability ratiCpk=min{Cpl，Cpu}. It shows how well the process is centered on the target comparing with Cp.

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Higgins说这些目标没有显示在航空管理中心的雷达上，因此他们批准了飞机起飞。

Those targets had not been on the radar screen of the air traffic controller who approved the departure, Higgins said.

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北京市环保监测中心的统计分析显示，至此，北京提前一个月完成全年“蓝天”目标，比去年同期多25天。

According to the statistics from the Municipal Environment Protection Monitoring Center, the yearly goal of blue sky has been achieved one month ahead., up 25 days year-on-year.

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