If the parting line cannot be on a single plane, then it is good practice to use symmetry of the design to minimize the side thrust forces.
如果分模面不能在单一平面，利用设计的对称性来减小侧向推力不失为一种好方法。
2
The results present thrust, specific impulse and thrust efficiency of the thruster under various environmental pressures, as well as impulse density distribution on the exit plane.
计算结果给出了不同环境压强下推力器的推力、比冲、推进效率和出口平面冲量密度分布。
3
This would sacrifice "static thrust" (the pull when the plane is stationary on the runway) for thrust at high airspeed.