cordless screwdriver:无绳螺丝刀 详图:

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1

cordless screwdriver

无绳螺丝刀
Battery-driven screwdriver with interchangeable bits, used for tightening and loosening screws and bolts.
带可互换钻头的电池驱动螺丝刀,用于拧紧和松开螺钉和螺栓。
2

reversing switch

反向开关
Switch for selecting the bit’s direction of rotation (screwing or unscrewing).
选择钻头旋转方向的开关(拧或拧)。
3

bit

[bɪt]

钻头
Detachable shank rotated by the motor to screw or unscrew a part.
由电动机旋转的可拆卸的柄,用来拧或拧零件。
4

battery

[’bætəri]

电池
Device that stores chemical energy while charging, then converts it to electric energy.
充电时储存化学能,然后将其转换成电能的装置。
简典