Both panel method and lifting surface method can be used to calculate the unsteady force.
非定常力可以采用面元法或升力面方法计算得到。
The improved vortex lattice method is used to predict the ground effect on wake roll-up behind a lifting surface.
用该方法研究了近地升力面尾涡卷起的地面效应。
The unsteady flow field near the leading edge of an oscillating sweptback wing is obtained by using 3-D subsonic lifting surface theory.
本文应用三元亚音速升力面理论求出了后掠翼前缘附近的流场。
A numerical method is presented for prediction of propeller performance and pressure distribution on blade surface according to lifting surface theory.
本文提供了一种根据升力面理论计算螺旋桨桨叶表面压力分布和螺旋桨性能的数值方法。
Lifting surface method and non-linear vortex lattice method were used for the calculation of propeller and rudder with additional thrust fins respectively.
对螺旋桨与舵附推力鳍分别采用升力面法和非线性涡格法计算。
The span wise coherence function of the aerodynamic lifting force in the buffeting response of bridges is analyzed by using the lifting surface theory of airfoils.
利用机翼升力面理论分析了桥梁抖振升力沿跨向的相关函数。
Based on the vortex theory, lifting surface method is used to establish wind turbine performance prediction model with rigid cylinder wake model, prescribed wake model and free-wake method.
采用基于涡系理论的模型建立刚性圆柱尾迹和预定尾迹模型的升力面法预测程序，对无偏航情况的风力机性能进行了预测。
Meanwhile the open water characteristics of the propeller were predicted by using the lifting surface theory. Comparison with to experimental data showed that calculation errors are acceptable.
应用升力面方法理论计算螺旋桨切割前后的敞水性能，与试验值的比较表明计算值误差在可接受的范围内。
Calculation results show that the unsteady motion has pronounced influences on the hydrodynamic characteristics of the lifting surface, a phenomenon deserving due consideration in applied engineering.
计算结果表明，运动的非定常性对升力面的流体动力特性具有显著的影响，工程应用中对此需要加以考虑。
Lifting our brows pulls the eyes open and allows more light to reflect off the surface, making them look bright, large and inviting.
挑眉时会拉大双眼，使得更多的光线在眼睛表面折射，这使得它们看起来更亮，更大，更引人注目。
Components required to be mounted off the board are provided with lead forms at the board surface or other mechanical support to prevent lifting of solder land.
需要离开线路板安装的组件在线路板表面利用引脚形状或其它机械支撑来防止焊盘的翘起。
Device for working surface, especially lifting platform, and method for operating such device.
用于表面处理的装置，特别是升降工作的吊盘，和使这种装置工作的方法。
The method deduced in this paper can also be used to calculate the maximum tensile forces for lifting a weight nearby the water surface during the salvaging operation.
本文导出的计算方法也可用于计算打捞作业中提升重物至水面附近时吊索的最大张力。
Micron-sized polystyrene(PS) two-dimensional colloidal crystals with highly ordered were fabricated quickly by vortical surface method by controlling lifting rate.
通过控制提拉速率，采用液面漩涡法制备了高度有序的微米级聚苯乙烯（PS）二维胶体晶体。
Aerodynamic sensitivity for subsonic lifting-surface with arbitrary curved leading edge is evaluated by kernal function method.
具有任意曲线前缘的亚音速升力面的气动敏感性导数由核函数法给出。
Simulation experiments have been made on the hydrodynamic characteristic of the lifting airfoil moving near the sea surface.
对接近海面运动的升力翼的水动力特性进行了模拟试验。
A new method based on lifting-surface theory is presented determining the load distributions on finite wings in subsonic flows.
本文提供了亚音速升力面理论的一种新解法，可求解亚音速流中有限翼展机翼的载荷分布。
Objective Using surface electromyography (SEMG) technique to evaluate repetitive lifting task induced fatigue of back muscles.
目的应用表面肌电信号(SEMG)技术对重复性搬举所致的竖脊肌疲劳进行评价。
Polymeric foam buns are horizontally cut along a longitudinal surface thereby lifting off a foam sheet.
沿着纵向表面水平地切割聚合物泡沫厚板从而切下泡沫薄片。
This paper has adopted the lifting-surface method for the prediction of unsteady hydrodynamic performance and cavitation performance of propeller.
本文采用升力面理论预报螺旋桨非定常水动力性能及空泡性能。
Engagement between the spring arms and the sliding surface creates a lifting force which opens the valve.
该弹簧臂与所述滑动表面之间的接合产生了开启所述阀的上举力。
A control device which is used to control the electric lifting gearing is installed on one side of the bed surface.
在床体一侧安装有控制电动升降机构的控制装置。
Dolphins endanger themselves to rescue trapped dolphins, lifting an injured dolphin to the water's surface to help it breathe, she said.
海豚会冒险救援被困海豚，将受伤的海豚举过海平面、以协帮其呼吸。
Abstract: the steel box beam lifting on wide water surface faces a lot of risk factors and thereby has a higher safety control requirement.
摘要水上大跨度桥梁钢箱梁吊装工程风险大、对安全控制管理要求较高。
And the horsepower of surface motor is ascertained through anticipating the operating power of motor shaft according to the power of lifting liquid and rotational speed of PCP.
由举升流体所需功率和螺杆泵转速预测电动机轴的负载功率，确定地面电机额定功率。
Both the finger independence and lifting exercises can be performed without a piano, on any flat surface.
执行这些手指独立性练习和抬高指练习都可以脱离钢琴，在任何的平面。
Both the finger independence and lifting exercises can be performed without a piano, on any flat surface.
执行这些手指独立性练习和抬高指练习都可以脱离钢琴，在任何的平面。
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