空气

Objective To investigate the clinical feature, characteristics of acoustic and aero-dynamic peremeters of functional dysphonia contrasted with the normal adults and evaluate the value of acoustic and aero-dynamic measurements in the diagnosis and treatment of functional dysphonia.

目的 观察功能性发声障碍喉镜图像、嗓音声学特征及空气动力学变化，探讨喉镜检查、计算机声学分析、空气动力学变化在功能性发声障碍诊断、鉴别诊断、分类及治疗中的应用价值，初步建立功能性发声障碍临床诊断标准。

In atmosphere, lightning , strong electric field , rock , ray in soil also can make air ionization happened; Waterfall , fountain , sea wave , rainwater etc., the meeting uses water and the windage but produces a free electron.

大气中闪电、强电场、岩石、土壤中的射线也能使空气发生电离；瀑布、喷泉、海浪、雨水等，会使水与空气摩擦而产生自由电子。

Using electrostatic precipitation, the ESP Air Purifier traps airborne pollutants*—such as pollen, dust mites, smoke and pet dander—improving the quality of the air in your personal space.

ESP Personal Air Purifier 通过静电沉淀原理吸取空气中的污染物质，比如花粉，灰尘，烟尘和宠物皮屑等等，从而达到改进您私人空间空气质量的效果。

During 1899, Germany scientists Elster and Geitel discovered the particle in the air did carry with electrical, and this kind of particle was called the "Air ion".

在1899年，Elster和Geitel这两位德国科学家首次发现空气中含有带电的粒子，此粒子后来被称为「空气离子」。

The glaciers, perhaps 200 million years old, also may entomb genetic fragments of past microbial life on Mars as well as air bubbles that might reveal the composition of the atmosphere as it was long ago, according to geologist James Head of Brown University in Providence, Island.

根据位于Rhode岛的布朗大学的校长地理学家詹姆斯所称，2亿年前的冰川也可能蕴含着过去火星上微生物的基因样本以及可能显示亿万年前的空气成分的空气气泡。

Dimensionless equation of air flow resistance is functional relation of Euler number, Reynolds number and Prandtl number, is set up after experimental data is analyzed Air resistance through cooling coil is conveniently computed , fan of the new cooling tower is correctly selected and suitable distance of among cooling tubes is designed by the dimensionless equation.

建立了空气流动阻力的准则方程，即欧拉数Eu与雷诺数Re、普朗特数Pr之间的函数关系。利用这个准则方程可以方便地计算空气流经冷却盘管的阻力，合理地选配封闭式冷却塔所用风机和设计冷却盘管的管间距。

Based on a series of signal process and noise source identification techniques, especially the major noise source identification methods, such as expurgation method, sound intensity analysis, spectrum analysis vibro-acoustic correlation analysis and so on, the pass-by noise control of SC7080A and SC6360B are studied in detail. By the roadway and dais experiments, the major noise and radiating parts are identified and some economical controlling methods are made. For the SC7080A, to control the emissing noise from the intake and shell vibration of air cleaner, a intake muffler is installed between the air cleaner and intake valve. Based on the theory of Helmholtz resonator, One three-parallel-connected resonant silencer is designed and trial-manufactured. For the SC6360B, the attenuation performance of exhaust muffler in high frequency region is improved. To reduce the vibration noise of shell part, the structure of oil sump tank, exhaust manifold shield and exhaust manifold shield are analyzed and improved. At the same time, some measures, such as sound absorption, sound insulation, are taken to reduce the noise of engine surface emissivity and a sound shield is designed.

本文首先综述了目前国内外汽车加速噪声控制的现状、主要方法和技术措施，在此基础上，结合SC7080A和SC6350B汽车的车外加速噪声水平及现状，综合运用分别运行法、声强法、频谱分析法、声振相干函数法等现代噪声源识别方法，对SC7080A和SC6360B汽车进行了准确详细的车外加速噪声源识别并提出了经济可行的控制方案，针对SC7080A，主要在空气滤清器和进气阀门之间的进气管道上加装进气消声器，抑制空气滤清器壳体表面和进气口两处的噪声辐射，根据Helmholtz共振腔原理设计了三腔并联旁支型共振消声器，并进行了工程化设计和试制；针对SC6360B，主要改善了排气消声器在高频段的消声性能，对罩壳类零件进行了结构改进，降低了其表面噪声的辐射，并对发动机舱进行了吸声、隔声处理，设计了发动机隔声罩。

The principle, process, influence factors, advantages and disadvantages of dry air exsiccation in flowing gas evaporation method and the preparation of dry air are introduced mainly.

综述了天然气管道常用的干燥剂法、流动气体蒸发法和真空干燥法的原理、优缺点、影响因素，对流动气体蒸发法中的干空气干燥法的原理、工艺、影响因素、优缺点、干空气的制取进行了重点介绍。

To the third floor there is a wall outside the bathroom window exhaust fan used row, the rest of the room through the windows of the room on the natural ventilation and outdoor air directly to achieve the exchange of indoor air flow.

一至三楼靠墙有外窗的卫生间采用排风扇排风，其余房间通过房间上的窗户进行自然通风与室外的空气直接进行交换达到室内的空气流通。

Pursue the business of large environmental protection of sewage disposal as a major,"Jin Baili " invited enjoy the State Council the special allowance, patent inventor that has liquid waste of aeration of deep well of feebleminded bad news to handle installation and patent person Zhang Mingyou, and inside a batch of course of study such as the senior engineer Han Xindi that invents device of new idea aeration by oneself senior personage, in using afore-mentioned two technologies inventions actively at producing practice.

作为一家专业从事污水处理(经由过程物化方法往除水中一些物质的过程)的年夜型环保企业，"金伯利"聘请了享用国务院特别补贴、拥有低能耗深井曝气(将空气中的氧强迫向液体中转移的过程)废水处理(经由过程物化方法往除水中一些物质的过程)装置的专利发明人和专利权人张明友，以及自行发明新概念曝气(将空气中的氧强迫向液体中转移的过程)装置的高级工程师韩新弟等一批业内资深人士，并积极将上述两项技巧发明利用于出产实际中。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。