结果表明，U型弧底节流孔具有更大的压降和更高的热力学效率。
It is shown that the U-bottom orifice has higher total pressure drop and (thermodynamic) efficiency.
因为从根本上来说，黄金的力学效率取决于黄金与以黄金为基础的信贷之间的比例。
For the mechanical efficiency of gold is, per se its ratio to the credit built on it.
现代运动用滑翔机的机翼长而细薄，拥有最佳的空气动力学效率，其升阻比达到50：1。
A modern sports glider, with long, slender wings, is the most aerodynamically efficient aircraft, with a lift-to-drag ratio of around 50:1.
现代的飞机设计做得很好，但立足于燃料效率来看，飞机是否能设计得更符合空气动力学——降低阻力还是增加动力？
The modern airplane design works well, but from a fuel efficiency standpoint, could planes be designed more aerodynamically — to lower drag and increase lift?
通过更加符合空气动力学的形状和一个曲线尾巴的飞机结构，这些发动机将使飞行更有效率，同时会将绝大部分的噪音传向空气上方。
With a more aerodynamic shape and framed by a curved tail plane, these engines would make for a more streamlined aircraft, as well as directing most of their noise upward.
再加上新型轻质材料、集成电子技术和空气动力学方面的进步，我们已经可以看到提高燃油效率有效技术途径。
Add in the new lightweight materials, integrated electronics, aerodynamic advances, and right there is a technology road map that increases fuel efficiency.
专项特征是指一个运动项目在比赛规则的允许下，以获得最大的运动效率为目标，在力学、生物学等方面表现出的主要运动特点。
Event specific characteristic refers to the major sport characteristic of mechanics and biology, which take purpose on the maximal sport efficiency under the game rule.
我们的系统在输出方面效率很高，力学系统比如传统的风力涡轮机不会造成磨擦力损耗。
"Our system is very efficient in that there is no friction loss associated with more mechanical systems such as conventional wind turbines," he said.
结果表明：界面粘结作用是影响力学性能和纤维效率系数的关键因素。
The results showed the interracial bonding was a decisive cause to influence the mechanical properties and fiber efficiency factors.
由于热力学和实际限制，发电的效率只有33%。
However, due to various thermodynamic and practical constraints, the efficiency of the plants is only about 33%.
本文通过试验，验证了MBDM的力学机理，测定了传动效率及弹性滑动率等相关性能参数。
The transmission mechanism of MBDM is validated and some performance parameters, such as transmission efficiency and elastic creep ratio, are measured by test.
本文研究了温差能驱动装置的循环过程，从热力学的角度分析了它的热循环机理，给出了装置热效率的估算方法。
This thesis investigates the circulation processes of the drive-device, analyses the principle of heat circulation processes and shows the way to estimate the device's thermal efficiency.
同时介绍利用上述基本热力学数据计算石油天然气膨胀机制冷过程等熵效率；
The basic data thus obtained could be used for the calculation of the isentropic efficiency in the expanding process of natural gas in refrigeration.
本文从有限时间热力学观点出发，导出有限时间约束条件下闭式燃气轮机循环的最大功率输出及其相应的效率界限。
Based upon the theory of finite time thermodynamics, this paper derives the maximum power output and the corresponding efficiency bound for a finite time closed-Brayton cycle gas turbine.
由于减速器内的运动部件(旋转盘、控制杆)改进了空气动力学，结果使效率增加。
Improved aerodynamics due to the transfer of moving parts (swash plate, control rods) into the transmission results in an increase in efficiency.
结果表明：变形铝合金半固态模锻成形件经新工艺处理后，力学性能明显提高，缩短了处理时间，节约了能源，提高了生产效率。
The results show that the mechanical property of semi-solid drop-forgings is improved obviously, its processing time is shortened, the energy is saved and the production efficiency is also improved.
进行塔板流体力学和塔板效率的实验时，涉及变量多，计算公式复杂。
In the experiment of tray hydrodynamics and tray efficiency, the variants involved are generally many and the calculating expressions are complicated.
滑轮组机械效率问题是初中力学中的重点，也是初中力学解题的难点。
The problem about mechanical efficiency of tackle-block is the key point in junior high school mechanics and also the difficult point.
结果表明，用微波固化制备环氧泡沫材料具有高效率的特点，所制备的环氧泡沫具有优良的压缩力学性能；
The results indicate that the epoxy foams have excellent compressive performance and the preparation of epoxy foam by microwave irradiation is high efficient and convenient.
外行人如此注重效率可能就是因为那些努力学习汉字的人常常被如何艰难地掌握他们的用法所困住。 。
Outsiders focus so much on efficiency probably because those who do try to learn the characters cannot help but be struck by how absurdly hard they are to master.
飞行器动力学建模中采用面向对象的设计样式，可极大提高动力学建模的水平和效率。
It can improve modeling level and efficiency adopting object-oriented design pattern in vehicle dynamics modeling.
采用单颗粒动力学模型计算旋风分离器内颗粒运动轨迹，并由此可算出粒级效率。
Trajectories of motion of particles in cyclone separator are calculated with particle kinetic model, which is followed by the calculation of separation efficiency.
通过水力学模拟试验对铸造铝合金过滤流动过程进行了分析，建立了过滤效率的水力学模拟试验关系式。
The analysis of filtering flow process of aluminum cast alloy based on hydraulic simulation was carried out. The filtering efficiency formula was established.
另一方面，纯力学问题中数值计算的稳定性和精度是首要问题，这无疑会影响到算法的效率。
On the other hand, the stability and precision of numerical computation are the chief concerned matters in single kinetic issues, which undoubtedly reduce the computation speed.
对金属化胶体推进剂的热力学、流变学、燃烧及燃烧效率等的分析研究表明，金属化胶体推进剂性能与金属粉末的添加量和金属半径有关；
The thermodynamics, rheology, combustion of metallized gelled propellants(MGPs) are analysed. It is showed that the performance of MGPs is related to the amount and grain size of metal power added.
这决定着材料的传输行为、催化活性、分离效率、黏附、储存和释放动力学等。
The microporous structure decides different properties of materials, such as delivery behavior, catalytic activity, separating efficiency, adherence, storage and released kinetics, etc.
由此可见，裂纹的定量辩识对动力学计算模型和裂纹参数搜索两方面的效率要求非常高，关系到其在工程实际中是否具有应用价值。
It can be seen that the efficiency of the dynamic model and the searching of crack parameters is crucial to the practical application of the quantitative crack identification techniques.
采用二元碰撞聚并模型计算了粒子在均匀磁场中的聚并系数，在此基础上求解了粒子聚并动力学方程，预测了粒子的聚并脱除效率。
Based on the particles aggregation coefficient calculated by the binary collision-aggregation model, the total particle removal rate was simulated by solving the particle General Dynamic Equation.
采用二元碰撞聚并模型计算了粒子在均匀磁场中的聚并系数，在此基础上求解了粒子聚并动力学方程，预测了粒子的聚并脱除效率。
Based on the particles aggregation coefficient calculated by the binary collision-aggregation model, the total particle removal rate was simulated by solving the particle General Dynamic Equation.
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