查询词典 drag on

An aerodynamical urban canopy scheme is incorporated into the fine town boundary layer model. The scheme contains drag effect of urban buildings on flow and effect of building morphology on urban turbulent activity and momentum transfer.

文中将建筑物动力冠层方案引入到城市边界层精细模式中，该方案描叙了城市地区建筑物对气流的拖曳作用以及建筑物形态对城市地区湍流活动动量输送的影响。

The effects of magnitude and distribution of the electromagnetic force on the flow around the aerofoil were investigated. The results show that the electromagnetic force with large magnitude and concentrated distribution on the surface of aerofoil is advantageous to eliminate vortex structures and boundary separation, and therefore to increase the lift-drag ratio.

同时对不同电磁力大小和分布影响翼型表面边界层流动的规律进行了探讨，其结果表明，较大的电磁力和更加集中于翼型表面的电磁力分布可以很好地消除涡结构，抑制边界层分离进而达到提高升阻比的效果。

A wide front fascia with a large, forward-facing grille opening, a splitter along the bottom and wheel opening extensions along the sides to provide aerodynamic downforce A cold air scoop in front of the hood that integrates an air inlet system for the engine The trailing edge of the front wheel opening is radiused to achieve improved drag, but protects the body finish with a tough molding, and a large air extractor is located behind the wheel A fixed-roof bodystyle optimizes body rigidity and mass Wider rear fenders with flares cover the massive rear tires and a brake cooling scoop in front of the wheels visually balances the fender extractor A tall rear spoiler houses the CHMSL on the top of the rear fascia 10-spoke wheels (18-inch, front; 19-inch, rear) Four larger stainless steel exhaust outlets New-design Chevrolet Corvette Z06 badging on the carbon fiber front fenders

宽阔的前仪表的大，面向前方格栅启用，底部和侧面的轮开放扩展拆分为空气下压力的一个寒冷的空气罩前面铲，整合为一个航空发动机进气道系统的尾部前轮的边缘radiused开放，实现改善阻力，但保护的强硬成型身体结束，和一个大型空气提取的背后是车轮固定屋顶bodystyle优化车身刚性和群众更广泛的耀斑位于后翼子板覆盖大规模的后方轮胎和刹车冷却的车轮前面铲视觉平衡挡泥板提取一个高大的后扰流器房子的后方筋膜十名高位刹车灯，以车轮（18英寸，前，19英寸，后）四较大的不锈钢排气口新设计的雪佛兰克尔维特Z06的碳纤维前挡泥板徽章

To map one field to anotheryou simply click on a field on the left, and drag your mouse to a field on the

要映射两个字段你只需点击左边的某个字段，拖动鼠标放到右侧的一个字段上即可。

To map one field to another you simply click on a field on the left, and drag your mouse to a field on the right.

要映射两个字段你只需点击左边的某个字段，拖动鼠标放到右侧的一个字段上即可。

To map one field to anotheryou simply click on a field on the left, and drag your mouse to a field on theright.

要映射两个字段你只需点击左边的某个字段，拖动鼠标放到右侧的一个字段上即可。

Just under this background, studying on the flight mechanism of flapping-wing MAV and sample fabrication from the bionics are conducted in this dissertation. The kinematics equations of insect wings can be acquired by the observation and measurement on the natural insect in researching paper. The geometry model of insect is established by UG technology. The three dimensional grid during the insect moving in the flow field is achieved which adopted grid generation method. The characteristic of lift and drag are attained by simulation the surround flow field during the locomotion of wings, and the flight mechanism of insect is discussed. Based on this study, the physical flapping-wing MAV is fabricated by the acquirable materials and parts of apparatus in existence.

正是在这一背景下，本文从仿生的角度来研究微型飞行器的飞行机理与样机制作；通过查阅文献中对自然界中昆虫翅膀运动的观察与测量，获取了昆虫翅膀的运动方程；采用UG建模技术，建立昆虫的几何模型；采用网格划分方法，获取昆虫在流场运动时的三维网格；运用CFD方法模拟翅膀运动时周围的流场，获取昆虫运动时的升阻力特性，进而来研究昆虫的飞行机理；在此基础上，通过现有可用的材料加工制作仿生微型飞行器。

In order to study the effect of microstructure on the superhydrophobic solid surface for its drag reduction charactertics, micro-ridges grating structures on the basis of K9 glass flat surface were fabricated using femtosecond laser. Experiments were carried out to measure the rheological characterization of 40% glycerin solution on flat and grating structured K9 glass surfaces using AR-G2 rheometer respectively. Both surfaces were modified with trichloro perfluoroocty silane in drying oven.

为了研究超疏水固体表面的微结构对减阻特性的影响，首先利用飞秒激光加工技术在光滑K9玻璃基面上加工出微脊光栅结构，然后将光滑K9玻璃与光栅结构K9玻璃置于干燥箱内进行硅烷化处理，以降低表面自由能，最后用AR-G2流变仪测量两表面的流变特性，试验用流体为体积分数40%的甘油溶液和水。

On the fingertip drag drill she drags her fingertips right on the surface of the water, close to the mid-line of her body, which makes her think about getting her elbows up on the recovery, and she's trying to keep her body in alignment so that her hips don't go out of line.

在指尖拉水训练中，她的指尖在水面划过，靠近身体的中线，这使得她高肘移臂。她努力调直身体，使臀部不会与身体脱节。

On the fingertip drag drill she drags her fingertips right on the surface of the water, close to the mid-line of her body, which makes her think about getting her elbows up on the recovery, and she's trying to keep her body in alignment so that her hips don't go out of line.

在指尖拉水训练中，她的指尖在水面划过，靠近身体的中线，这使得她高肘移臂。她努力调直身体，使臀部不会与身体脱节。6、锚钩训练

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。