查询词典 drag one's heels

Shandong Weifang drag Holdings Limited is the birthplace of small-wheeled tractor, but also the country's largest production base for small-wheeled tractor, a large state enterprises, mainly agricultural production wheeled tractor, With an annual output capacity of 200,000 units registered trademark "Wei drag" card.

山东潍坊拖拉机厂集团有限公司（简称山东潍拖集团有限公司）是中国小四轮拖拉机的发源地，也是全国最大的小四轮拖拉机生产基地，国家大型一类企业，主要生产农用轮式拖拉机，年产能力20万台，注册商标&潍拖&牌。

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。

Bioluminescent bacteria shine from pockets on its arms to confuse its predators.

它的足囊中的发光微生物发出的光可以迷惑敌人

A new technique D-Norm was introduced based on the KL distance.

重点引入了一种新的根据KL距离的D-Norm 归一化方法。