Pointing . Pointing is a secondary machining operation consisting of adding points on fastener blanks which were not pointed during the heading operation .

是第二次机械化加工，在顶端加工后，再将紧固件坯料钉端切削。

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The Canadian Police is heading up the $900 million security operation, the largest in Canada's history.

加拿大警方正在领导这项耗资9亿美元的安全行动，这是加拿大历史上规模最大的一次。

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