| 摘要 |
One pair of fire arms(800) is connected to each other by a connecting device. These arms have a ball(815) and a mouth. This ball can be attached or removed from the hole(835), which is located on the under side of the gun. The ball and mouth are assembled in such a way that the gun can move on the X & Y planes. The rotating angle is constrained by the width of the mouth(807). The height of fire arms can be controlled.
|
