An Israeli, holds a firing mechanism, fitted with a pistol that sits over a color mini-camera with zoom, located at the front end and the back section which consists of the stock, trigger and a monitor, that allows the shooter to fire at his target from around the corner, during a shooting session in a fire range in the central Israeli town of Shoham, Monday Dec. 15, 2003. The system developed by the U.S.-Israeli company Corner Shot is being tested by armies from 15 countries and Israeli combat units and forces will begin using the device next week, a former deputy commander of Israel's anti-terror unit and founder of the company said. (AP Photo/Oded Balilty)

词汇：

mechanism n.机械装置，机构，机制

stock n.树干，托盘

trigger n.板机