查询词典 sweepback

Different sweepback sweepback-wing and triangle-wing′s radar cross sectionare computed with finite difference time domain,and the profiles for the RCS are analyzed.

以时域有限差分法计算了不同后掠角的后掠翼和三角翼的雷达散射截面，并对其分布情况进行了分析；计算了不同后掠角的后掠翼和三角翼在多个频段的RCS，并按照不同的威胁判断求出平均值，得出RCS随频率的变化情况。

They give a better performance, with less sweepback, at high and low speeds.

空客的设计展示出了一个在高速和低速飞行时减少后掠的更好的机身外貌。

The results show that the efficiency of cascade would be more or less improved by the blade sweepforward, sweepback and bend, but the influence of them on the cascade flutter is various.

通过计算结果可以看出，前掠、后掠与弯曲或多或少可以提高叶栅的效率，但对颤振特性的影响却各有不同。

For the sweepback airfoil,the paper constructs its approximation models of structure disciplinary and aerodynamic disciplinary.

结果表明，用Kriging方法构造的近似模型精度较高，而且比较稳健。

Furthermore, the fan blade was stacked renewedly. And then, the influence of blade sweepforward, sweepback and bend on the cascade flutter was discussion.

本文还在三维风扇叶片的基础上对叶片重新积叠，讨论了叶片前掠、后掠以及弯曲对颤振特性的影响。

Dealing with the high sweepback flying wing, the classical layout of the control surfaces is given, after the CFD computes, the dynamic characteristics of the control surfaces are analyzed, the variation of the dynamic parameters caused by the deflection of the elevator, aileron and the split-drag-rudder are studied to provide a reference to design the control system.

针对所建立的大后掠飞翼模型，给出了一套典型的操纵面布置方案，通过CFD计算后，对各舵面气动特性进行了分析，在升降舵、副翼和阻力方向舵偏转过程中对各气动参数的影响进行了研究，给控制系统的设计提供了依据。

The car surged into the next lane and slowed to their speed; it was extravagantly streamlined and its sweepback windshield gave it the look of losing its hat.

那车猛冲上相邻的一条车道，然后慢下来和他们的车齐速并行；它那车身把流线型搞得离谱了，挡风玻璃往后抑着，就像一个人戴着的帽子快要脱落似的。

Theoretical results show that lunate-tail, with high-aspect-ratio, spanwise tapering tip and moderate sweepback angle, of many fast-swimming ocean animals, may gain the nearly best propulsive characteristics.

理论分析表明，高速海洋动物所具有的大展弦比、尖叶梢、中等后掠的新月形尾能获得接近于最佳的推进性能。

Further, each blade has, in the radial direction, a sweepforward wing portion situated on the boss side and exhibiting a positive advance ratio value, and a sweepback wing potion situated on the outer peripheral side of the blade and exhibiting a negative advance ratio value, with the arc length of each blade increasing from the boss side toward the outer peripheral side.

并且，叶片(4)具有轮毂侧的前进叶片部(2)和叶片的外周侧的后退叶片部(3)，前进叶片部在半径方向上具有前进率为正的值，后退叶片部具有负的值。

The five methods are tested on a 2-D test function ,a straight airfoil and a sweepback airfoil. For the straight airfoil,the paper constructs its approximation models of structure disciplinary, aerodynamic disciplinary and stealth disciplinary.

用这五种方法分别构造二维测试函数的近似模型，直机翼结构学科、气动学科和隐身学科的近似模型和后掠机翼结构学科、气动学科的近似模型，并总结这五种方法对二维测试函数、直机翼和后掠机翼各学科近似的适用性。

Objective:To compare the response control and attention of Schizophrenic patients with that of the healthy controls by Integrated Visual and Auditorycontinuous performance test. To quantitate the impairment of cognitive function in patients, and to explore the relationship between cognitive function and the severity of the disorder.

目的：探讨精神分裂症病人在IVA持续操作测试中的反应控制能力、注意力等，并与健康人进行比较，从而量化精神分裂症病人的认知功能损害，并进一步探讨其认知功能与疾病严重程度的关系。

Main effective factors including subcooling degree, mechanical vibration, gas hydrate reformation, environment temperature, noncondensing gas and surfactant are analyzed.

指出过冷度、机械振动、重复生成水合物、环境温度、不凝性气体、添加剂是影响气体水合物生成的主要因素，还对R152a水合物的放冷进行了实验研究。