A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)

A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)

A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)

A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)

A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)

A truck-mounted rocket launcher attached to an artillery detachment with a brigade under the PLA 77th Group Army fires rockets at simulated ground targets during a live-fire test in plateau area at the elevation of 4,500 meters in late July, 2020. (eng.chinamil.com.cn/Photo by Guo Peng)