aerodynamic noise

Taking the target ′ s maneuvering acceleration, target ′ s maneuvering time and target ′ s glint noise into account, the switching time from aerodynamic control to compound control is decided.

在考虑目标机动加速度大小、目标机动时刻以及目标角闪烁的条件下，确定了拦截弹的控制方式由空气动力切换到复合控制时的切换时间。

By modifying the thickness of the blade trailing edge, research influences of the blade trailing edge to the aerodynamic performance and noise levels.

通过修改叶型尾缘厚度，研究叶型尾缘厚度对风洞风扇的气动性能和噪声水平的影响。

A Study on the Low Aerodynamic Noise Performance Analysis and Control of Engine Cooling Axial Flow Fan

发动机轴流冷却风扇低噪声气动性能分析与控制研究

Study on the aerodynamic noise of a fastback car with rear view mirrors in uniform motion and accelerated motion

匀速及加速行驶时带后视镜轿车气动噪声的研究

Industrial-process control valves-Part 8-3 : noise considerations-Control valves aerodynamic noise prediction method.

工业过程控制阀.第8部分:噪声问题.第3节: 气动控制阀噪声预测法.

Noise is included aerodynamic noise and structure noise.

噪声主要包括气动噪声和结构噪声.

It is very important to reduce the aerodynamic drag and noise for a transport vehicle.

减小汽车行驶中的空气阻力,抑制行驶时的气动噪声具有十分重要的意义.

The key point of reducing noise paper machine is to reduce aerodynamic noise of vacuum couch.

降低真空伏辊空气动力性噪声是降低抄纸机噪声的关键.