The hand brake is mounted on the X-ray machine to control the exposure of the film. The foot brake is mounted on the X-ray machine to control the perspective of the device. Therefore, for the problem that the exposure hand brake and the foot switch can be used simultaneously on one X-ray machine, the following answers are given: First, we should know the type of X-ray machine, whether the X-ray machine is used for filming, or is it a perspective What about it? The hand brake and the foot brake are selected according to the type of the X-ray machine. There are also many types of X-ray machines, which can be used for filming or see-through. The exposure of the hand brake and the foot switch are all required. At this time, the hand brake and the foot brake are present at the same time. It can be seen that there is a C-arm X-ray machine that can be filmed, but the X-ray U arm machine is only used for filming, so the hand brake is suitable for X-ray U arm machine use, and the foot brake cannot be used for X-ray U arm machine.