查询词典 aerodynamic

The principal perturbing forces for launch vehicles, both on the launch pad and in flight , are the aerodynamic loads produced by winds

发射飞行器在发射台上以及在飞行中的重要扰动力是由风产生的气动载荷。

The aerodynamic "funny bikes" of today offer greater speed than ever, despite their poorer manoeuvrability that leaves them ill-suited to pack racing. The 1984 Los Angeles Olympic Games, in particular, fielded a wave of futuristic machines, including the debut of the spokeless, carbon-fibre disc wheel.

利用空气动力学设计的新型自行车虽然操控性不佳，不适于集体项目，但创造出前所未有的速度。1984年洛杉矶奥运会上，新兴技术和设备纷纷涌现，特别是首次出现了没有辐条的碳素轮胎。

You can achieve an aerodynamic position by stooping forward while you put your hands behind your back.

如果你想穿越平地的时候，你可以保持这样的动作：俯身并将双手放在背后。

An effective aerodynamic optimization design method of transonic airfoil is given.

提出了一种有效的跨音速翼型气动优化设计方法。

Approximation model ; turbomachine ; aerodynamic optimization design

近似模型；叶轮机械；气动优化

Aerodynamic optimization technology for compressor design plays an important role in the development of high performance axial flow compressor, multiobjective genetic algorithm are currently being widely used in turbomachine optimization design.

近年来，多目标遗传算法在叶轮机械优化设计中得到了广泛的应用。

Reducing secondary flow losses is one of the key techniques to improve aerodynamic performance of turbomachine blade. Non-axisymmetric Endwall Profiling of turbomachinery blade has been proved to be an effective technique in reducing pithwise pressure gradient between pressure surface and suction surface.

降低叶栅内部二次流流动损失是提高透平机械通流效率的重要方法之一，非轴对称端壁成型技术已被验证能够有效地减小叶栅压力面与吸力面之间的横向压力梯度，降低叶栅内部二次流流动损失，提高叶栅效率。

Research on the inverse,hybid and optimization problems in engineering science with emphasis on turbomachine aerodynamic:review of,Chinese advances.In:Dulikravich G.S.

长期从事流体力学及流体机械、叶轮机内流动数值模拟、环保产品研制及计算机应用软件开发等教学和科学研究工作。

A composite rigid shell, with an aerodynamic profile, elongated longitudinally along the span of the blade, one longitudinal end of which is turnable towards a hub of the rotor and includes a blade root, said shell including at least one layer of reinforcing fibres agglomerated by a matrix comprising a synthetic rigidifying resin and laminated upper-surface and lower-surface skins extending from a leading edge to a trailing edge of the blade, each of said laminated skins comprising, from an inside towards an outside of the shell, a film of polyetherimide resin, at least one layer of plies of long and unidirectional fibres oriented substantially along a longitudinal axis of the blade, and at least one layer of fibre fabric, in which the directions of weft and warp yarns are oriented substantially at 45.degree.

复合刚性外壳，与气动的个人资料，拉长纵向沿跨度刀片，一纵年底，这是对回转中心的转子和包括叶根表示，蚬壳，其中至少1层加固纤维烧结由一个矩阵组成的一个综合rigidifying树脂和复合材料层合上表面和低表面皮肤延长，从领先到尾缘的刀片，每个说，叠层皮组成，从内对外界的壳，一个电影聚醚酰亚胺树脂，至少有一个层的层长和单向纤维导向的大幅沿长轴的叶片，并至少有一个层的纤维织物，在该方向的纬纱和经纱是面向大幅在45.degree 。

The parametric uncertainty is considered to denote the uncertainty in structure,and both parametric form and unmodeled dynamics are used to represent the influences and mechanism of uncertainty in unsteady aerodynamic forces.

将结构的不确定性考虑为参数形式，非定常气动力的不确定性考虑为参数和未建模动态两种形式，建立了不确定系统的线性分式变换模型。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。