为了精确的输入采用滑动棒杆机制。

Bar type feed slide mechanism for accurate feeding.

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光检测模组整合于承座上并且对应于滑动棒具有定位凹槽的 侧面。

The light detection module group is integrated on the bearing seat, and corresponds to the side surface of the sliding rod with the locating grooves.

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然后出现了钢丝弦，接着膝上吉他就诞生了。膝上吉他也被称为钢吉他，因为演奏者会在琴颈上下滑动一个钢棒。

Then came steel strings, and that led to the lap guitar—which is also called the steel guitar because the player slides a steel rod up and down the neck.

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