A control scheme is proposed, in which liquid engine of constant thrust and impulse thruster are chosen to achieve hover task.
提出一种近月面定点悬停的控制方案，选用常推力液体发动机和脉冲式发动机实现悬停任务。
In the weeks leading up to take-off, I could feel the constant, seismic rumble of all those barely reined-in pounds per square inch of thrust.
为开机做准备的几周里，我能感觉到持续的，如地震前几乎没有停止过的无处不在的推力的隆隆声。
Thrust value is constant and thrust direction variable.
假定发动机推力大小为常值，方向可调。
The thrust value is constant and the thrust direction is variable.
发动机推力大小为常值，方向可调。
If thrust and drag do not equal each other, the airplane can not fly at a constant speed.
如果推力和阻力彼此不相等，飞机就不同能等速飞行。
It words by ionizing xenon gas and expelling it with the aid of electric fields, so providing a gentle but constant thrust.
它通过电离氙气，借助电磁场将氙气释放，以此提供轻柔但持续的推进力。
The interceptor had sustain constant thrust or impulsive thrust perpendicular to the line-of-sight during the flight, and the target was maneuverable.
拦截器在飞行过程中轨控推力以持续定常方式或小脉冲方式施加在垂直视线的方向，目标具有一定的机动能力。
By using the motion equations of constant thrust maneuver, there is no limit on the thrust-level and no restraints on the relative distance when used in spacecraft rendezvous.
应用常推力作用下的质心运动方程，对机动推力的量值没有限制；在航天器交会应用中，对相对距离也无要求。
By using the motion equations of constant thrust maneuver, there is no limit on the thrust-level and no restraints on the relative distance when used in spacecraft rendezvous.
应用常推力作用下的质心运动方程，对机动推力的量值没有限制；在航天器交会应用中，对相对距离也无要求。
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