三是不稳定的空气状态。这是重要的局地热力条件。沙尘暴多发生于午后傍晚说明了局地热力条件的重要性。
Three is not stable air condition. This is an important local thermal conditions. Sandstorm occurs more often in the afternoon that incorporates the evening the importance of thermal condition.
稳定的空气，如果空气不稳定，气流会从山顶而不是侧面吹向山后并砸落地面，这时背风面存在强烈的下降乱流。
The stability of the air. If the air is unstable, the air may flow over the top of the hill instead of round the side, meaning that it will come crashing down in an area of sink behind the hill.
严重一点的患者可能就得用CPAP机来治疗了，人们给它取这个名字是因为它能够给气管提供稳定的空气压力，借以帮助患者在夜间呼吸。
More severe cases may be treated with a CPAP machine, so named because they maintain constant positive air pressure to the wind pipe to help users breathe easy at night.
大陆上的浅海可能减轻了附近空气所受的影响，以保持其相对稳定的温度。
The shallow seas on the continents probably buffered the temperature of the nearby air, keeping it relatively constant.
水和空气之间的温差大，在相对冷的水域上方形成静风，使得大气环境更加稳定。
A wide temperature differential between water and air makes for a more stable atmosphere with calmer winds over the relatively cold water.
如果产生的效益-不管是空气更清洁还是银行更稳定-表明其成本升高是值得的那还可以接受。
That is acceptable if the benefits—whether cleaner air or stabler banks—justify the costs.
原因如下：当与(空气中的)氧气，(烹饪时的)温度接触或者接受光照时，某些蛋白质将变得不稳定。
Here's why: certain nutrients are unstable when exposed to oxygen (from the air), heat (from cooking) and light.
的确，人类的活动导致全球空气中的含氧量在以稳定的，可以测量到的幅度下降。尽管如此，但这种下降是微乎其微的。
It is true that human activity is causing a steady, measurable decline in the oxygen content of the world's air, although as yet this decline is negligible.
在球运行路径的某一点(10米处，或人墙的位置)球的速度下降，使空气在球体表面形成较稳定的层流。
Some way into its path - perhaps around the 10 m mark (or at about the position of the wall of defenders) - the ball's velocity dropped such that it entered the laminar flow regime.
此外，还配备了额外的支撑装置，冷却管道和特殊的空气动力学系统。所以，威龙的高速并没有以牺牲安全性和稳定性为代价。
Additional bracing, extra cooling ducts and special aerodynamics are fitted to the Super Sport, so that safety and stability are not sacrificed for top speed.
鸭式无尾翼布局具有高度机动性和优越的超音速性能，但亦具有先天空气动力上之不稳定性。
The tailless delta-canard configuration is inherently aerodynamically unstable, which provides a high level of agility, particularly at supersonic speeds.
同时由于越来越多的人受空气，水资源以及土壤恶化与污染的影响也是影响社会稳定的另外的因素。
Social stability is another factor as more people are enraged by worsening air, water and soil pollution.
我向你们提到过,重心的运动是稳定的,若不受外力，我可以再次演示,在空气轨上。
So I mentioned to you that the motion of the center of mass is very uniform in the absence of external forces, and that I can demonstrate for you again with the air track.
压缩空气能源储存自1978年起已经在德国Huntorf稳定运行，阿拉巴马州的McIntosh也在1991年加入这个行列。
Compressed-air energy storage plants have been operating reliably in Huntorf, Germany, since 1978 and in McIntosh, Ala., since 1991.
一个共同的目标是使温室气体在空气中的浓度稳定在450- 550ppm(注二)，或者大约两倍于工业化前的水平。
A commonly cited goal is to stabilize GHG concentrations around 450-550 parts per million (PPM), or about twice pre-industrial levels.
草坪美化了环境，将声音和空气污染降到最低限度，稳定土壤，通过蒸腾冷却来减少住宅的热负荷。
Turf grass adds beauty to the landscape, minimizes sound and air pollution, stabilizes the soil, and reduces the heat load on homes through transpirational cooling.
警犬号超音速喷气式汽车研究团队的首席工程师，马克·查普曼(Mark Chapman)说：“我们在这一年里完成了所有的空气动力学的工作，汽车才能完全稳定在马赫为1.3的速度上。
Mark Chapman, Bloodhound SSC's chief engineer, said: "From all the aerodynamic work we have done this year, the car is completely stable at mach 1.3.
另外缓冲器可以减缓压缩机与空气系统的压力波动，为空气干燥器和其他设备提供更为稳定的压力和空气流量。
Buffer Another buffer can be slowed down and the air compressor system pressure fluctuations, for air drier and other equipment with more stable pressure and air flow.
二茂铁是一个晶的逆磁性物质，在空气中，湿气和光下是非常稳定的。
Ferrocene is a crystalline, diamagnetic material that is extremely stable to air, moisture.
为了造成这种结果，一个办法是沿著翼展重新分配空气动力负载，或是设法利用机尾水平稳定翼所产生的涡流。
One does this by redistributing the aerodynamic load along the wingspan or by incorporating the vortices coming off the horizontal stabilizer.
分析结果证明：使用空气静压导向装置可以对带锯条实现静压推力、振动阻尼和稳定导向，能够提高带锯条的稳定性。
The results of analysis prove that the vibration damping and stabilized guidance of saw-blade can be realized by using the aerostatic guide, which can improve stability of band saw-blade.
煤粉气流性质和炉内空气动力特性对锅炉的稳定燃烧起着重要作用。
Coal powder quality and air dynamic characteristics play an important role in the process of the steady combustion of boiler.
黄朗辉说道：“公众对恶化的空气质量的强烈反应表明，环境污染已成为一个关系到人类安全和社会稳定的问题。
The strong public reaction towards worsened air quality shows that the environment pollution has become an issue related to people's safety and social stability.
压缩空气系统的目的在于为粉末涂装系统提供稳定、无污染的高压空气。
The compressed air system is intended to provide a stable powder coating system, pollution-free high pressure air.
没有冷的墙壁或地板，但有一个稳定供应新鲜健康空气的室内环境。
There are no cold walls or floors, but a constant supply of fresh air and a healthy indoor climate.
“有一个疑问没有解决，那就是雾霾是否在某种程度上以一种普通空气无法实现的方式令细菌保持了稳定，”他接着写道。
"One question not addressed is whether smog stabilizes bacteria in a way that normal air doesnot," he added.
这是一个非常稳定的立场，稳定持续到空气中的一部分，这一演习。
This is a very stable position, the stability continuing into the air part of this maneuver.
塑石假山的稳定性主要靠主结构来完成，但随着时间的推移，钢材在接触空气及水的过程中，容易发生腐蚀、生锈。
Plastic rockery stone stability is mainly rely on the main structure completed, but with the passage of time, steel in the process of contact with air and water, prone to corrosion and rust.
在实验结果的基础上利用火焰稳定理论，论证了在不同一次空气系数时获得最佳燃烧器参数的可能性。
Based on the experimental result and flame stability theory, the possibility to obtain the optimum parameters of the burners are discussed under different primary air coefficient.
在实验结果的基础上利用火焰稳定理论，论证了在不同一次空气系数时获得最佳燃烧器参数的可能性。
Based on the experimental result and flame stability theory, the possibility to obtain the optimum parameters of the burners are discussed under different primary air coefficient.
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