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- mechanism of noise generation 噪声产生机理
- The change of airflow convective accelerating factor to the effect of fan noise is analyzed &calculated according to the mechanism of aerodynamic noise generated in airflow field. 根据空气流场中空气动力性噪声的产生机理,分析并计算了离心式通风机叶轮中,气流相对加速度系数的变化对风机噪声的影响。
- Characteristics and gen eration mechanism of noise from transformer are explained in this paper.The main measure s to attenuate transformer noise is desc ribed. 本文简述了变压器噪声的特点及产生机理,并介绍了降低变压器噪声的主要措施。
- She made a lot of noise about the poor food. 她高声抱怨食物太差。
- The dentist's drill made a lot of noise. 牙钻发出很大的噪音。
- The mechanism of noise production by riveter is analysed and the mechanical model of vibration isolation system is founded. 摘要分析了手提式电磁铆枪后坐力、噪声大的原因,建立了铆枪隔振系统力学模型;
- The mechanism of gear noise of lathe headstock was analyzed from the cause and the affecting factors,a corresponding method to resolve the problem of noise reduction was put forward. 从噪声的产生根源和影响因素两方面分析车床床头箱噪声的产生机理,从齿轮的设计参数、加工精度等方面提出相应解决措施。
- Industrial-process control valves - Part 8 : noise considerations - Section 1 : laboratory measurement of noise generated by aerodynamic flow through control valves. 工业过程控制阀。第8部分:噪声考虑。第1节:实验室测量气动流经控制阀产生的噪声
- Industrial-process control valves. Part 8: noise considerations. Section 2: laboratory measurement of noise generated by hydrodynamic flow through control valves. 工业过程控制阀.;第8部分:噪声问题
- The mechanism of noise reduction for non-smooth leading edge vane was that the non-smooth shape has the characteristic of rectify flow around the airfoil and the control the turbulent breakaway. 有效减少气流流经前后翼型表面时翼型间扰流作用,起到良好的导流作用,使后翼型来流平稳,气流噪声降低。
- In shielded cable, shielding material protects the data signal from external sources of noise and from noise generated by electrical signals within the cable. 在遮蔽缆线,遮蔽材料保护资料讯号避免外部的杂讯来源和从缆线内部电气讯号产生的杂讯。
- Analysis on acoustic noise generation mechanism of a steam-jet in water 蒸汽在水下有限空间内喷注时喷注噪声的声源分析
- Industrial-process control valves - Part 8: noise considerations - Section 1: laboratory measurement of noise generated by aerodynamic flow through control valves. 工业过程控制阀。第8部分:噪声考虑。第1节:实验室测量气动流经控制阀产生的噪声。
- The children were ramping about in the backyard, making a lot of noise. 孩子们在后院哄闹,发出很响的喧哗声。
- The soldier told us where the firing mechanism of a rifle is. 那个士兵告诉我们哪儿是步枪的击发装置。
- The production mechanism of the main noise factors in the resonation FOG is analyzed subsequently. The compensation methods of some kinds of noises which we care are induced. 接着对谐振式光纤陀螺中的主要噪声因素的产生机理做了分析,归纳整理了我们关心的几种噪声的补偿方法。
- In the train compartments, ambient temperatures and humidity will be set at appropriate levels, and a quiet environment will be created by the attenuation of noise generated by train operation. 车厢内的温度及湿度将调校至适当的水平。列车行驶时发出的噪音也将透过纾缓措施而得以消减,从而创造出宁静的环境。
- The mechanism of local government is far from perfect. 地方政府的结构还很不完善。
- In this thesis, we mainly study the dynamic features and physical mechanisms of neuron, especially, the effect of noise in neuronal encoding. 本文研究了神经元的基本动力学性质,并重点研究了在神经元信号编码过程中噪声的影响。
- She make a lot of noise about the poor food. 她高声抱怨食物太差。