“bobbin case”造句，怎麼用bobbin case造句

When making the sewing machine run idle, remove the bobbin case and the bobbin since there is the possibility that thread is entangled in the hook.

Removing the bobbin case。 Raise the bobbin case latch to remove the bobbin case.

Place the bobbin in the bobbin case taking care of the winding direction of the thread.

Pass the thread through threading slit 1 in the bobbin case, and route it under tension spring 2.

Hold the latch of the bobbin case, and set the bobbin case into the hook. Place the bobbin in the bobbin case taking care of the winding direction of the thread.

Properly thread the bobbin case.