Lock blade arm down with safety latch before installing handle.

安装手柄前请用安全插销锁下刀臂。

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His arm was cut very badly by the fan blade.

他的手被电风扇的扇叶严重割伤了。

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Upper arm is about equal in length to the shoulder blade in order to allow for good extension.

上臂长度约等于肩胛骨，以便为良好的扩展性。

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Upper arm is about equal in length to the shoulder blade in order to allow for good extension.

上臂长度约等于肩胛骨，以便为良好的扩展性。

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