经测试，飞机的轴驱动升力风扇推进系统可产生超过性能需求的垂直推力比。
The aircraft’s shaft-driven lift fan propulsion system produced more vertical thrust than needed to meet performance requirements.
绘出了不同速比下主、从动带轮间相对于转矩比的推力比线图并作相互比较。
Thrust ratios between driving and driven pulleys at several different speed ratios were plotted with respect to torque ratio and compared with each other.
但是，在太空这些火箭的效率很低——它们通过燃烧大量的燃料，产生了比需要更多的推力。
In space, however, these rockets are inefficient-they burn through huge quantities of fuel while generating more thrust than necessary.
JT8D-219发动机将使升级后的联合星飞机引擎比原先安装的TF33发动机拥有更多的推力，消耗较少的燃料。
The JT8D-219 engine will enable a re-engined Joint STARS aircraft to operate with more thrust, while consuming less fuel, compared to the TF33 engines originally installed.
但是光的新特性比单纯的推力要高级：光能产生这种更复杂的作用力-提拉力，很显著的例子是一个方向的光通量可以使物体垂直移动。
Light's new trick is fancier than a boring push: It created the more complicated force called lift, evident when a flow in one direction moves an object perpendicularly.
并基于某导弹缩比模型进行了实际测试，取得了导弹模型水下发射时发动机推力以及相应的结构壳体应变量等参数。
Practical tests of launching under water have been carried out based on a missile model, and parameters such as driving force of the engine and the structural strain of the model are obtained.
发动机压力比(epr)，进气压力与排气压力值的比，某些发动机以此作为设定推力的主要依据。
Engine pressure ratio (EPR), the ratio of inlet pressure over exhaust-let pressure measurements. The ratio is used as the primary parameter to set thrust on some engines.
一个涡桨可以比其他的飞机发动机多处理一些气流，因此在低速时，无论给定的燃料占总量的比例是多少，都会产生最大的推力。
A turboprop handles a larger airflow than any other aircraft engine and so (at low speeds) generates the largest thrust for any given rate of fuel consumption.
在同等壁面热条件下，随着动量调节系数的增加，喷管粘性损失增大，喷管的推力和比冲都将下降；
Under the same wall heat condition, with the increase of momentum correction coefficient, viscosity loss of the nozzle increases, but thrust and specific impulse decrease.
计算表明空气液化发动机的推力、比冲等重要的总体参数在飞行过程中会有较大的变化。
The result shows the important engine parameters such as thrust and specific impulse I sp change a lot during the fly process.
与这样的压力比5，由此产生的推力是约60 %的最高理论。
With such a pressure ratio of 5, the resulting thrust is about 60% of maximum theoretical.
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。
The characteristics of hybrid engine such as specific impulse, adjustable thrust, safety and low cost were demonstrated.
推力拖尾所延续的时间也比理论所预计的长。
The thrust tail duration is also longer than predicted by theory.
在单元数足够多时，环簇式塞式喷管可比相同面积比的钟形喷管的尺寸更小，重量更轻，推力效率更高；
When numbers of the inner nozzle are enough, plug nozzle has less size, less weight and higher thrust efficiency than the bell nozzle under same area ratio.
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。
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.
阿里安5和当前正在使用的阿里安4相比，直径和贮箱容积以及推力都有了极大增加，还提高了可靠性要求。
Ariane 5 has a much larger they-diameter, tank capacity and greater thrust power than Ariane 4. The reliability of Ariane 5 also must be improved.
在固体燃料冲压发动机性能分析基础上，推导了某发动机的推力和比冲与入口流量和温度之间的关系式。
The relations of thrust and specific impulse to inlet air flow and temperature are derived from theoretical analysis of solid fuel ramjet (SFRJ) performance.
随着补燃室长度的增大，发动机推力、比冲和燃烧效率均提高。
As the length of secondary combustion chamber increases, the thrust, specific impulse and combustion efficiency increase respectively.
在推力瓦的运行中，油温反映故障比瓦温更有效。
During the operation of thrust bearing shoe, served as an index of malfunction, oil temperature is more effective than thrust bearing shoe temperature.
发动机：两台F404-GE-402复燃发动机，单台推力达到18000磅，足以让战斗中的整机推重比超过1。根据不同的任务和载荷，战斗半径一律超过500海里。
Power Plant: Two F404-GE-402 afterburning engines, each in the 18,000 pound thrust class, which results in a combat thrust-to-weight ratio greater than 1-to-1.
与短期的使用全球定位系统测量相对照，其揭示出一个比横向位移更大比例的推力或缩短性位移。
This contrasts with shorter-term measurements using Global Positioning Systems which suggest a greater proportion of thrust or shortening displacement than lateral displacement.
与短期的使用全球定位系统测量相对照，其揭示出一个比横向位移更大比例的推力或缩短性位移。
This contrasts with shorter-term measurements using Global Positioning Systems which suggest a greater proportion of thrust or shortening displacement than lateral displacement.
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