This article did the research for compounding acetone-air gas by rising air bubbles.
为此，对鼓泡法配制丙酮-空气混合原料气的一些技术问题进行了研究。
The film-cooling technique have already got usage of the long-term in the air gas turbine.
气膜冷却技术在航空燃气涡轮中已经得到了长期的使用。
Balloon: Large airtight bag filled with hot air or a lighter-than-air gas such as helium or hydrogen that can rise and float in the atmosphere.
气球：一种大型气密球囊，内充热空气或轻于空气的气体（如氦或氢），以产生浮力，可在大气中上升和飘浮。
There is no heaven and earth the most beautiful flowers, nor the most elegant greeting CARDS, buried with the blessing it is only through the air gas mixture to convey to you.
这里没有天地间最美的鲜花，也没有最精致的贺卡，深埋着的祝福只有透过半空中的混合气体传达给您。
Numerical model for balanced draft air and gas system for circulating double fluidized bed is established and simulative study on the dynamic characteristics of air gas system is made.
建立了循环双流化床锅炉平衡通风风烟系统的数学模型，并对风烟系统的动态特性作了仿真研究。
In the twenty years that the Clean Air Act has mandated unleaded gas use in the United States, the lead accumulation worldwide has decreased significantly.
在《清洁空气法案》强制要求美国使用无铅气体的二十年里，铅在世界范围内的累积量显著下降。
A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.
一个世纪前，亨利·卡文迪什注意到当空气中的氧气和氮气被除去，还有其他剩余气体存在，但人们还没有认识到它们的重要性。
The pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.
气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。
It flies using a 23 gallon tank of gas and burns 5 gallons per hour in the air.
它使用一个23加仑的油箱飞行，每小时在空中燃烧5加仑。
Which one costs me more gas? Using an Air conditioner or open windows?
哪个更费油？开空调还是开车窗？
In the air, where Boeing 747s get about 2 miles to the gallon—that kind of gas mileage would be revolutionary.
在空中，波音747每加仑能飞2英里——那样的油耗是革命性的。
Burning gas, oil and coal creates air pollution.
燃烧可燃气体、石油和煤炭会产生空气污染。
He decided that trees use water, and a gas from the air, to grow.
他认为树木需要水和空气中的气体来生长。
The scientist did a test and found that trees can grow because of water and a gas from the air.
科学家做了一个测试，发现树木可以生长，是因为水和空气中的气体。
Recycling or reusing these devices conserves materials, prevents air and water pollution, and reduces greenhouse gas emissions that occur during manufacturing and processing.
回收或重用这些设备能够节省材料，阻止空气和水污染。降低制造时产生的温室气体的排放。
For example, oil and air circuit breakers are now replaced by gas ones.
例如，油和空气断路器如今已被气体断路器取代。
The company implies Oregon OSHA is focusing on formaldehyde solution in the bottle, but what's important is any formaldehyde gas that escapes into the air.
公司认为俄勒冈州职业安全与保健管理总署把甲醛处理处推到风口浪尖。但是最重要的是泄露在大气中的甲醛气体。
For the environment, organising committees assess as many as 34 distinct factors over time. They include air quality, land usage trends and greenhouse gas emissions.
就环境方面而言，组委会要在一段时间内评定多达34个不同的因素，其中包括空气质量、土地使用趋势和温室气体排放。
Foodstuffs may be dried in air, superheated steam, in vacuum, in inert gas, and by the direct application of heat.
食物可以在空气、过热蒸汽、真空、惰性气体中干燥，可以用直接加热干燥。
Occurrence: Helium comes from natural gas, deposits within Earth, and can be isolated from air.
存在：氦存在于自然大气中，在土壤中沉积，而且能从空气中分离出来。
Neon, a rare gas in the air, takes only fractional percentage point of the volume.
氖是空气中的稀有气体，只占空气体积的千分之几。
Gas bubbled out and entered the air, pushing onwards the wave of warming.
这些气体冒出来溶入大气之中，导致了气候变暖的出现。
Radon gas in the air is present worldwide, its concentration depending on the highly variable uranium content of the soil.
在世界各地，空气中都存在氡气，其浓度取决于土壤中差别极大的铀含量。
Moreover, they usually stay aloft even when punctured: the pressure of the helium inside a blimp is about the same as that of the air outside, so the gas does not rush out.
此外，就算被刺穿了，它们通常也能留在高空：气球飞艇内部氦气的压力和外部气压相近，因而气体不会溢出。
However, if exposed to heated air, the phase change from liquid to gas is more intense, and produces an efficiency of 70 percent.
然而如果该过程中加入热空气，相变过程就会加剧，达到70%的效率。
Plant have the power to take this gas from the air, combine it with water, and make it into their tissues; in fact, it is from this source that all organic carbon comes.
植物有能力从空气中吸收二氧化碳，使之与水化合转化成植物的组织，实际上，所有有机碳化合物都是通过这种方式形成的。
Plant have the power to take this gas from the air, combine it with water, and make it into their tissues; in fact, it is from this source that all organic carbon comes.
植物有能力从空气中吸收二氧化碳，使之与水化合转化成植物的组织，实际上，所有有机碳化合物都是通过这种方式形成的。
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