查询词典 microburst

Some mod-el available of this kind,generally,are assumed that the microburst im-pings on the ground vertically and the turbulence is unconsidered.

该模型可模拟以任意方向倾泻的微暴流，其暴核离地高度、暴核直径、暴流强度、暴流倾泻方向、距机场位置等皆为可调参数，使用灵活方便。

The characteristics of microburst and its modeling requirements in real time flight simulation were analyzed.

分析了微下击暴流的特征和用于飞行实时仿真中的建模需求。

A model of microburst is studied in this paper for flightmechanics application and real-time flight simulation training.

本文建立一个适合于飞行力学研究和飞行员训练的微暴流风切变模型。

Microburst is one of the harmful phenomena which cause wind shear.

危害性最大的是微下冲气流，其尺度约为1-4km。

An axisymmetric,three-dimensional engineering model of microburst was used in the simulation of aircraft take-off with windshear encounter.

采用较真实的三维微下击暴流工程化模型和非线性动态逆方法，对飞机在起飞过程中的纵向/横侧改出低空风切变的控制律进行了设计和仿真。

The charcateristics of microburst were described,and the Doppler velocity field structure of a wet type microburst occurring on July 22,1997 in Beijing area has been researched.

文中概述了微下击暴流的特征，研究了 1 997年 7月 2 2日发生在北京地区的一个湿型微下击暴流的多普勒速度场结构；

Roll clouds can also be a sign of possible microburst activity.

大多与阵风锋面有关（有时即使没有雷暴，也与寒流有关）。

The scale of it is usually l-4km. A microburst model is used in the paper, the lidar scanning along the runway and vertical to the runway when a microburst happening are simulated.

本文阐述了通常的微下冲气流的影响和利用激光雷达沿跑道方向扫描和垂直于跑道方向扫描的情况，得出扫描的径向风速PPI显示图像。

An engineering model of microburst is built up with characterization of wind shear and simulations of the aircraft through microburst wind are performed in accordance with motion equations of wind shear,at last,the influence of wind shear on flight performance for aircraft is analyzed in the paper.

随后根据建立起的风切变运动方程，对飞机穿越微下冲气流风场进行仿真，分析了风切变对飞机飞行性能的影响。

Wind shear ; microburst ; turbulence ; model.

风切变；微下击暴流；湍流；数学模型

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。