First, the optimization model of interplanetary low-thrust trajectory was established using modified equinoctial elements.
首先，基于归一化的改进春分点根数建立了星际小推力转移轨道的优化模型；
A novel rapid method to design optimal-fuel interplanetary trajectory for low-thrust propulsion is presented based on normal trajectory approach.
针对星际探测任务中燃料最省小推力转移轨道问题，提出一种基于标称轨道的快速设计方法。
On the development process of the variable thrust rocket engine combustion vibra ions are encountered in the low working conditions, we solved this problem finely by lateral baffle.
在研制变推力火箭发动机的过程中，低工况时遇到了燃烧振荡问题，我们采用横向挡流板很好地解决了这个问题。
The advantage of the ducted propeller is, this type propeller can support greater thrust and higher efficiency under low speed, so is the first choice.
导管螺旋桨优势在于低航速时提供更大的推力和更高的推进效率，因此作为首要选择。
The characteristics of hybrid engine such as specific impulse, adjustable thrust, safety and low cost were demonstrated.
阐明了固液发动机比冲、可多次启动关机、推力可调、安全性好和成本低等特点。
In order to satisfy the operation requirement of the rated thrust of the propeller, the propulsion motor performs only in rated torque on the low speed, so the motor power is low.
认为以满足螺旋桨额定推力为目的，推进电动机只需要低速输出额定转矩来实现，即输出功率较低。
The thrust lock moves freely, and has the advantages of less parts, simple structure, convenient use, simple processing technology, low cost, etc.
该推力锁具有运动自如，零件数量较少，结构简单，使用方便，加工工艺简单，成本较低等优点。
The accurate interpretation shows that such domal bodies are the seismic reflections of non-reef-bank deposits of low angle thrust faults, slope slump accumulative zones and turbidite fans.
精细解释表明，此类丘状体是低倾角逆断层构造、斜坡滑塌堆积及浊积扇等非礁滩沉积体的地震响应。
The tear fault intersected with low angle normal fault or thrust fault can form some traps, e. g. trap-door structure trap.
撕裂断层与低角度正断层或逆冲断层相交时常形成有利圈闭，如活板构造等。
This paper makes an undated assessment of the technical and economic feasibility of transferring satellites from low Earth Orbit to Geostationary Orbit using low thrust propulsion.
本文对利用低推力推进装置将卫星从低地轨道转移到静地轨道的可行性在技术上和经济上重新作了评价。
An optimal orbit maneuver method based on continuous low thrust was presented to solve relative motion control.
针对近距离相对运动的轨道控制问题，提出用常值小推力完成最优转移的方法。
Due to the requirements of smooth operation and low noise, their thrust pulsation must be smaller.
由于要求运行平稳、噪声低，因此推力的脉动要小。
The configuration also provides acoustic shielding and, at low speed, increases aircraft lift without a thrust or drag penalty.
该构造还提供声屏蔽，并且在低速下，增加飞机升力的同时没有推力或阻力损失。
In accordance with the influences of thrust measuring caused by low temperature, technical measures to solve these problems are raised.
针对低温对推力测量带来的影响，提出了解决问题的技术措施。
The south Qinling has formed an imbricated thrust fault at low angle from the north to the south.
南秦岭自北向南产生低角度叠瓦状逆冲断裂。
The thrust bearings are capable only to sustain the axial loads, with low limit speed. They have two stress modes, I. E. One-way thrust and two-way thrust.
推力轴承只能承受轴向负荷，极限转速低。有单向推力和双向推力两种受力方式。
The main thrust-slip fault belts and the nappe structure zones, thrust sheets and low strain regions lying in between the main thrust-slip fault belts are described in detail.
对主干逆冲断裂带及其间的逆冲推覆体带、逆冲席带和低应变区的特征进行了详细描述。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
Electrodynamic tethers with low thrust-to-weight ratios can only perform orbital transfers over a large number of revolutions, which poses a real challenge to short time scale optimal control methods.
电动力绳系卫星的推力幅值较小且方向固定，完成轨道机动任务的周期长，其最优控制问题的求解比较困难。
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