If the two media have really different densities, like air and water, then most of the energy is going to be reflected back, very little of it will keep going and get transmitted into the new medium.
而如果这两种介质的密度相差较大，就像空气和水那样，那么大部分的能量将会折射回来，只有一小部分会继续传播进入到新的介质中。
All large and medium-sized Chinese cities will have greater air quality monitoring by 2010, says a government official.
一位政府官员表示，到2010年，中国所有大中型城市的空气质量监测都将得到加强。
Air is generally used as the drying medium because it is plentiful, convenient, and overheating of the food can be controlled.
由于空气来源丰富、使用方便，并能控制食品的过热，所以，常用它作为干燥的媒介。
Sound waves need a medium through which to travel, whether it's air, water, glass or metal.
声波的传播需要媒介，这种媒介可以是空气、水、玻璃或金属。
If an object moves through a medium — - air or a liquid — there is a resistive force which always opposes the velocity.
如果物体通过媒介-，比如说空气或者液体-，都会遇到阻力，阻力总是和速度相反。
The emerging use of Twitter as a news medium ran smack into the limitations of live tweeting recently during the trial of Russell Williams, a former Canadian Air Force colonel.
微博作为新兴的媒体工具，近期闯进了对前加拿大空军上校罗素·威廉姆斯的审讯中，并对整个过程实时更新微博。
The technique can image variations in what is known as the refractive index of air - in essence, the speed of light in a given medium.
这项技术能够使空气折射率图形化-本质上就是特定介质下的光速。
Lynch says that AIR was a response to the Web's evolution into a more interactive medium.
Lynch说，AIR是对Web演变成更有交互性的介质的一种响应。
The air is different in different places; it is the local atmosphere, the medium through which pass the history of the place and the ideas there indwelling.
不同地方有不同空气；当地氛围，传递当地历史的媒介，还有根深蒂固的思想观念。
The FRES program will provide the British Army with a family of medium-weight, network-enabled, air-deployable armored vehicles to meet up to 16 battlespace roles.
FRES计划将为英国陆军提供一系列的中型、具有网络使能、可以空中部署的武装车辆，满足英国在战场空间中最多16种需求。
Air France said the flights affected are short and medium haul only. Long haul should take off as normal.
法航表示受影响的航班只是中短途的，长途航班可以正常起飞。
The typical oil steam filter the adsorption medium is activated carbon, it can be compressed air of the oil on the surface of steam molecular intercepted.
典型的油蒸气过滤器所采用的吸附介质为活性炭，它可以将压缩空气中的油蒸气分子截获在其表面。
And with the compressed air and the cooling medium to exchange heat.
并与压缩空气和冷却介质进行热量交换。
空气是声音的传播媒介。
After cooler work principle is that use of the cooling medium (such as water or air) and after cooler the exit of compressed air temperature difference.
后冷却器的工作原理在于利用了冷却介质(如水或空气)与后冷却器出口处压缩空气的温度差异。
The condenser is a heat equipment, the evaporator absorbs heat with heat input power of compressor transformation with the transfer of the cooling medium ( such as water or air ).
冷凝器是放出热量的设备，将蒸发器中吸收的热量连同压缩机输入功率转化的热量一起传递给冷却介质（如水或空气）带走。
Sound travels through the medium of air.
声音通过空气介质传播。
France is helping India build the Astra air-to-air beyond-visual-range missile, while Dassault is vying for India’s ＄10 billion purchase of 126 medium multirole combat aircraft.
法国正帮助印度构建Astra空对空超视距导弹系统，与此同时法国达索公司也正在竞争印度100亿美元的126中型多用途作战飞机购买合同。
We will continue to bring you integrated air handling solutions to the demanding requirements of tomorrow's medium and heavy duty diesel engines, and beyond .
我们将继续推出整套空气压缩解决方案，适应未来的大中型柴油屐机的严格需求。
空气是传播声音的媒介。
The compressor is loaded up with the medium of air (nitrogen, process gas).
压缩机以空气（氮气、工艺气体）加载运转。
Air is the common medium of sound.
空气是声音的普通介质。
The result indicates that the sound speed of gas liquid two phase flow is much lower than single phase liquid or air medium.
结果表明：气液二相流音速比单相液体或空气介质低得多，流动机构对音速变化有显著影响。
Pressure trial medium is nitrogen or air.
试压介质为氮气或空气。
The paper discusses the difference between coal dry beneficiation with air dense medium fluidized bed and other traditional separations in keeping density stability.
分析了空气重介质流化床选矿方法与其他传统选煤方法在保持密度稳定性方面的差异。
Vortex tubes of different length were developed and the effect of the length on the performance of vortex tube was investigated by experiment with air as medium.
研制了不同热端管长度的涡流管，并以空气作为工作介质，通过实验研究了热端管长度对涡流管能量分离性能的影响。
Air is the medium by which sound is transmitted.
空气是声音传播的介质。
The connecting wire used for the PD test of HV cables was improved based on the corona discharge theory in air medium.
利用空气介质中电晕放电理论对高压电缆局部放电试验连接导线进行了改进。
Once published, namely receive many large and medium-sized air-conditioning manufacturers and engineering contractor recognition, and in many key engineering application.
一经问世，即得到众多大中型空调生产商和工程商的认可，并在多项重点工程中应用。
A kind of electrical controller microinjection controller with air as the pressure medium is described.
介绍了一种气压电控式超微量注射控制器的原理与设计。
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