1、
Press the lever on the back of the foot holder. The presser foot will drop off.
向前推压布脚支架背面的杆, 压布脚会压下.
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2、
The brakes may also be operated by mechanical linkages from the foot pedal and handbrake lever.
制动器也可由与制动踏板和手制动器杆相连的机械联动装置操纵.
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