When the function exits, the call object is removed from the scope chain.

在函数退出时，调用对象就会从作用域链中去掉。

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Taking the tooth shape chain board as the study object, its main parameters were measured.

系统以齿形链板为研究对象，对其主要参数进行测量。

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Taking the tooth shape chain board as the study object, its main parameters were measured.

系统以齿形链板为研究对象，对其主要参数进行测量。

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