摘要
以不带助推火箭的二级火箭为例指出,火箭各级的喷气速度越大越好,火箭各级的yi/xi越大越好,第一级火箭越大越好,但是对第二级火箭而言,就不一定是越大越好。
Taking a two-stage rocket of series type as an exampl, the result in this paper shows that the higher the effective jet velocity is, the better the rocket is and that the bigger the ratio y_i/x_i or the first stage rocket's mass is, the better the rockt is. However, this conclusion is not suitable to the second stage rocket's mass.but the same isn't true of the second stage rocket's mass.
出处
《青岛大学学报（自然科学版）》
CAS
2003年第4期11-13,共3页
Journal of Qingdao University(Natural Science Edition)
