涡

This overshooting is proved to be necessary for maintaining vorticity balance.

通过对NCEP/NCAR资料的分析，证明了北半球夏季副热带地区500hPa上的涡度平流和β项是平衡外强迫的主要项。

The causations of heavy rain in this area are convergence in the low level and intensity of cyclonic vorticity and strong upward motion.

低层辐合和气旋性涡度的加强所产生的强上升运动造成较大的降水过程。

Temperature contours on a flame surface and contours of vorticity magnitude on the mid-plane of a gas turbine combustor.

温度轮廓，火焰表面和轮廓涡规模的中期飞机的燃气轮机燃烧室。

Based on the experiment of this paper, numerical simulation is made to study the behavior of hot water plane negatively buoyant jets in flowing environment.

结合本文的试验，对平面热水负浮力射流同样进行了数值模拟和预报，计算得到了不同排放角度和射流比情况下的涡心、分离点位置和最大入侵高度。

Fierce wind vortex that can not stand woorimalin 'waterspout' quoted in the concept map, iconic pinwheel shape of the vortex in the middle of a battlefield maepyida.

暴风涡——引入了不能站在风眼的"龙卷风"概念的地图，在战场的中间有标志性的风车形态的涡流。

It can make the whirling center of the journal lower and enhance the stability of the system.

这相当于增大了轴承负载，从而降低了轴颈的涡动中心，增加了系统的稳定性。

The results show that this method could give a deep understanding of whirling instability of the gas film bearings-rotor system.

研究结果表明：该方法对气体轴承中存在的气膜涡动问题能够给予合理的解释。

The effects of Reynolds number (from 800 to 2 000), the attack angle (30° and 45°) of delta winglet vortex generator are examined.

计算了Re（为800~2000）、三角形小翼型涡发生器的冲角（分别为30°和45°）对管－翅表面平均Nu、压降的影响，并利用场协同原理进行了分析。

Wingtip vortices, on the other hand, are much more stable and can remain in the air for up to three minutes after the passage of an aircraft.

翼梢涡，另一方面，更稳定，可以继续留在空中长达3分钟后，通过飞机。

Based upon a systematic review on the study of subtropical anticyclone, in this study, the mechanism linking the formation of subtropical anticyclone in boreal summer to zonally asymmetric diabatic heating is investigated via data diagnosis, theoretical study, and numerical experiment. The complete form of the tendency equation for vertical vorticity development, the NCEP/NCAR reanalysis data, and the IAP/LASG GOALS climate model are employed for the study.

本文在回顾有关北半球副热带高压研究的基础上，基于全型垂直涡度倾向方程，利用NCEP／NCAR月平均资料和IAP／LASG GOALS气候模式，从资料诊断、理论研究及数值试验三方面研究了纬向非对称非绝热加热对北半球夏季副热带高压形态变异影响的物理机制。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐