它会调焦、调光圈和光闸速度。
The camera adjusts its focus, lens aperture, and shutter speed by itself.
近光则通过移动灯泡和镜头之间的一个光闸产生。
The low beam is produced by moving a shutter between the bulb and the lens.
光闸设计为一个质量弹簧系统，对加速度力产生响应。
The shutter is designed as a mass-spring system that moves in response to acceleration force.
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