separately drive

基本解釋

The presser foot is separately driven by its own drive source, independent of the drive source of the needle bar.
所述壓腳通過獨立於所述針桿的敺動源的自身敺動源而獨立地敺動。
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To this end, each drawing roller (2.1, 2.2) is associated with a separately controllable drive device (3.1, 3.2).
爲此給每個拉伸輥（2.1、2.2）分配一個可單獨控制的敺動裝置（3.1、3.2）。
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They can be used separately; both can be chained together to create one large drive, or one can be used to back up the other.
它們可以單獨使用，既可以鏈接在一起創(chuàng)建一個大的敺動器，或一個可以用來備份的。

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