空气

THE connection between an 18th-century savant called Joseph-Louis Lagrange and the problem of landing safely at Hong Kong International Airport may not, at first, be obvious. But there is one. Hong Kong airport is notorious for rocky and sometimes aborted landings caused by the disturbed air flow from nearby mountains. Though laser technology is deployed alongside its runways to monitor changes in wind speed and thus forewarn pilots, that is often not enough. What is needed is a better understanding of the theory of the winds themselves.

十八世纪的学者Joseph-Louis Lagrange同香港国际机场飞机的安全降落之间乍观起来并没有明显的联系，但是，实际上是有的，香港机场以其路面坚硬、附近山上吹来的空气涡流常常飞机降落的被迫取消而臭名昭著，尽管沿着飞行跑道部署了最新的科技手段以监视空气风速的变化，从而给飞行员以提前警告，但这常常是不够的，需要的是对风本身理论上的更好的理解

The balloon moves through the air, and measures the temperature gradient of ambient air, called the ambient lapse rate, the environmental lapse rate, or the prevailing lapse rate.

气球在空气中移动穿行，测量周围空气的气温，叫做四周垂直递减率，或环境递减率或普遍递减率。

Temperature changes in the air are then due to the liberation of latent heat as

空气气温变化是因为灯笼热运动和空气膨胀。

All patients of the two groups, 20min of after and befor inject anesthetic drugs ,end of treatment course ,measure of leges temperature by thermography .

为准确观察进针深度，以及推注空气与不推注空气药物的扩散范围，在CT引导下行腰大肌肌沟阻滞操作。

In air pollution, solid particles or drops of liquid carried by air or other gases.

在空气污染中，指固体微粒或由空气或其他气体乘载的液体点滴。

All air and exhaust outlets are installed beneath the sash, letting air run outside through the terrace louver.

所有空气和排气口安装了下面的窗框，让外面的空气运行通过阳台百叶窗。

The surrounding air temperature does not surpass +40℃, lowest surrounding air temperature - 40

使用条件周围空气温度不超过+40℃，最低周围空气温度-40

This thesis is based on the developing project of "Testing and research on the related technology of the aerodynamic effect in the high speed railway tunnel", which is from the national railway department and also based on the project of "The research on the micro-pressure wave and tunnel hood around the gate of the tunnel in YuHuai railway with the speed of 200km/h",which is from the second surveyed and design institute of China Railways. Research on the lucubration of tunnel aerodynamic effects mechanism and corresponding alleviation measure was carried out.

本文以铁道部科技研究开发计划项目《高速铁路隧道空气动力学相关技术的研究与试验测试》和铁道部第二勘测设计院《遂渝铁路时速200公里隧道洞口微压波及缓冲设施研究》为依托，结合我国国情，对隧道空气动力学效应的作用机制和其减缓措施进行研究。

The air pollution is one of the most important problems in Macao.

空气污染一直是澳门的环境问题，空气污染造成的损害是多方面的。

The Activated Ploy-oxygen Aerator adopts magnetic engineering technology to send the oxygen of air which is gathered and activated by polyoxier to the mixing chamber of main engine under water, and the process of water and oxygen synthesization is finished rapidly by the use of magnetizer and activated oxygen enriched air under water, which has been cut into tiny air bubbles by the high-speed rotated propeller of the mixing chamber in the process of water and oxygen synthesization, which can increase the affinity of water and oxygen. When flow rate of water is more than the buoyancy force of the tiny air bubbles, it is difficult for the tiny air bubbles to float on water in short time and the tiny air bubbles can stay in water for longer time, which can increase the efficiency of water dissolving oxygen and make the power efficiency of the machine is greater than traditional aerator obviously.

聚氧活化曝气增氧机采用磁性工程技术，将空气中的氧经聚氧器聚集活化后送到水下主机的混合室，由水下的磁化器和活化富氧空气快捷完成水气合成程序，在水气合成过程中已被混合室内高速旋转的离心叶轮切割成微小气泡，这些随射流、射向水下方的小气泡，其动能消耗至零后，在水中的浮力作用下、开始缓慢上升，由于提高了水与氧亲合力的小气泡只靠浮力沿着螺旋型的曲线缓慢浮升，这些小气泡在短时间很难浮上水面，因此延长了小气泡在水中的停留时间和行走路程，大大提高水中溶解氧的效率，使该机的动力效率明显高于传统曝气装置。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新