试用大炮代火箭想必很多人早在荧屏上见过卫星发射的壮观场面：巍峨火箭笔直指向苍穹，随着控制室内倒数计时完毕，操纵人员按下电钮，发射场上顿时烈焰浓烟，一片火海，尾部喷出火柱的巨大火箭在振耳欲聋的呼啸声中腾空而起，向茫茫太空飞去—…·但实际上，用火箭发射卫... Trial cannon on behalf of the rockets must have seen a lot of people back to the screen as early as the spectacular launch of the satellite scene: towering rockets pointing straight sky, with the control of the indoor countdown is completed, the operator presses the push button, firing a sudden flames of smoke, a fire sea, Huge rocket jetted the tail of the rocket in the deafening whistling into the sky, to fly to the vast space ... ... ... But in fact, the rocket launch Wei ...