变更针距只需按住按钮边把手轮的调节刻度调整到适合的位置。
The adjustment scale on the hand wheel is adjusted to a suitable position by pressing the button to change needle distance.
变更针距只需按住按钮边把手轮的调节刻度调整到适合的位置。
The adjustment scale on the hand wheel is adjusted to a suitable position by pressing the button to change needle distance.
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