Enables multi exposure shooting. The film does not advance when the shutter button is pressed to allow taking several exposures on the same frame.
能多次曝光拍摄，当快门按钮按下时，胶卷不会卷动，可实现在同一底片上多次曝光。
2
A sensor is fixed to a frame of the loom through a connecting rod and a support, and the sensor is pressed on a licker-in roller through the connecting rod by a torsion spring.
其主要采用传感器通过连杆和支架固定在织机的机架上，扭簧通过连杆使传感器压在刺毛辊上。
3
The cage frame is cylindrical and is made of metal wires, and the cage frame can be pressed, stacked or expanded along axial direction.