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 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。
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。
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。
Like von Sternberg, he films his actors mostly in closeup and medium shot, with baroque architectural details in the background, with cigarette smoke constantly coiling through the air.
和冯•史登堡一样，王家卫总将他的演员置于特写和中景镜头中，背景是巴洛克建筑的细节，烟雾一直在空气中缠绕。
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。
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。
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。
In the past, air WAS the common cooling medium for components of most excitation systems.
过去，普遍采用空气作为励磁系统各部件的冷却介质。
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。
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。
Medium and small tanks and surface curvature radius of curve or surface smaller irregular equipment, building the air duct insulation and dew and wall body sound-absorbing heat preservation.
小型储罐及表面曲率半径较小的弧面或表面不规则的设备、建筑空调管道保温防露和墙体的吸音保温。
And air, which is the medium for wireless communication technologies.
空气它是无线电技术传输的媒介。
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。
Mainly in small and medium-sized commercial air-conditioning system, central air conditioning systems, building automation system design and manufacture and sales.
主要从事中小型商用空调系统、中央空调系统、楼宇自动控制系统的设计制造与销售。
The spinning conditions which influence the dyeing evenness of polyester DTY including spinning temperature, filter medium, air cooling and the chips quality are investigated.
本文研究了纺丝温度、组件过滤介质、冷却吹风管理以及切片质量等影响DTY染色均匀性的纺丝工艺条件。
The results showed that the wood bunch can be quickly dried using high temperature and low humid air medium.
结果表明：杉木木束干燥可采用高温低湿的干燥介质进行快速干燥。
Ideal for general pieces of various dimensions with normal operating air gaps and medium thicknesses and for use in table configurations.
非常适合不同尺寸的一般工件，正常的操作空间和适中的厚度，按照表中配置的使用。
Ideal for general pieces of various dimensions with normal operating air gaps and medium thicknesses and for use in table configurations.
非常适合不同尺寸的一般工件，正常的操作空间和适中的厚度，按照表中配置的使用。
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