查询词典 drag iron

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天鹅一直都是忠贞爱情的美好象征，天鹅一生严守一夫一妻制，若一方死亡，另一方则不食不眠，一意殉情，这种伟大的爱情让人们感动，一次天鹅成为情侣的最美好的定情信物，这款18K玫瑰金钻石吊坠仿佛一只天鹅悠然自得的游曳在湖面上，设计造型的优雅浪漫渗透于线条的每一处，镶嵌在最中心的美钻耀眼夺目，寓意忠贞，有11颗小钻镶嵌的翅膀美丽动人，点缀得恰到好处，成为吸引视线的亮点，游曳在胸前，尽显女性的时尚与美丽。

By using the semi experiential engineering arithmetic based on the ideology of area ratio , the slope of lift coefficient curve, the zero lift drag coefficient and the induced drag factor of double delta wing aircraft were calculated.

采用基于面积比思想的半经验工程算法计算了双三角翼飞机的升力系数曲线斜率、零升阻力系数和诱导阻力因子。

We call this form of drag induced drag because it is "induced" by the process of creating lift.

我们叫这种阻力叫诱导阻力是因为它是在产生升力的过程中产生的。

This paper presents a mathematical model that employs momentum method to calculate the aerodynamic drag of the truck. This model achieves higher precision than previous methods without consideration of induced drag.

本文提出了动量法计算汽车气动阻力的数学模型，该模型克服了此前的方法中忽略诱导阻力的缺点，显著的提高了计算精度。

But for a small vehicle, the decrease in induced drag and increase in skin friction drag are more equal, so only marginal improvements in overall efficiency are possible.

但是对于小型飞行器，减少的诱导阻力和增加的表面摩擦阻力大致相等，所以效率的提升并不显著。

Induced drag occurs when the air flow separates from the surface of a wing, while friction drag is due to the friction between the air and bird moving through the air.

诱导拖动发生时，气流分离，从表面的一翼，而摩擦拖曳是由于摩擦之间的空气和鸟移动通过空气。

A tail thus enables the bird to have wings that are optimized for cruising speed (with the tail furled to minimize drag) and, at low speeds, the spread tail reduces induced drag during manoeuvring and turning flight.

一条尾巴，从而使鸟类有翅膀是优化的巡航速度（与尾巴furled ，以减少阻力），并在低速，传播尾巴减少诱导阻力在操纵，把飞行。

Based on these da- ta,an optimization model to distinguish skin drag coefficient and form drag coefficient was es- tablished.

根据这些试验数据，利用动量法原理和数学优化方法构造了摩拖曳系数和形拖曳系数的辨识模型，将摩拖曳系数和形拖曳系数两项分开。

The horizontal drag FD, created by the flow, consists of skin friction acting on the surface of the grain and form drag due to a pressure difference on the up-and downstream sides of the grain because of flow separation.

此水平阻速力 FD，由流动所产生，包括着表皮的摩擦加于颗粒的表面以及由粒子上和下流两边所产生之压力差所形成的阻速力，这是因为分开流动所致。

By solving the linearized atmospheric dynamic equation system including turbulent dissipation, the analytical solutions of wave drag and form drag over small scale terrain in a nocturnal stable boundary layer are obtained.

通过求解含有摩擦耗散的线性化大气动力学方程组，得到了在夜间稳定大气边界层中小尺度地形产生的波动阻力和形式阻力的解析解。

But this is impossible, as long as it is engaging in a market economy, there are risks in any operation.

但是，这是不可能的，只要是搞市场经济，是有风险的任何行动。

We're on the same wavelength.

我们是同道中人。