Principle of dry gas seal with screw groove type was introduced. It was applied in the centrifugal compressor to realize zero gas leakage. It has safety operation of the compressor group guaranteed.
介绍螺旋槽式干气密封的工作原理，通过在离心式压缩机上应用使瓦斯达到零泄漏，保证机组的安全操作与运行。
The temperature scale that turns out to be well—defined and ends up giving us the concept of an absolute zero is the ideal gas thermometer.
理想气体温标它有精确的定义，并能引出绝对零度的概念。
But the best thing is that they don't have to actually create neutron degenerate matter itself, just cool some lithium-6 gas to nearly absolute zero, grab it inside a laser trap and make it wobble.
但最好的事情莫过于他们不必真的制造出中子简并物质本身，只要把一些锂- 6气体冷却到接近绝对零度，然后把它们抓到激光阱并使之振动即可。
And we saw that, you saw that the Joule coefficient for an ideal gas was zero.
我们会发现，你们也会发现，理想气体的焦耳系数是零。
Krypton gas will surround its infrared sensors, allowing ice cubes to form that will cool the sensors to hundreds of degrees below zero.
氪气会包围在红外传感器表面，冰块由此形成，能把传感器的温度降低到零下几百度。
This quantity is exactly zero for an ideal gas and we'll discover why eventually it has to do with what we mean by an ideal gas it turns out.
对理想气体它是零,这点我们接下来会知道是,为什么，这与为什么我们叫它理想气体有关。
So how did they create a gas turbine engine that is fuel efficient yet can go from zero to 62 mph in 3.4 seconds?
那么怎样才能提高燃气轮机的效率，使其能够在3.4秒内将汽车启动并加速到62英里每时？
Myth 8: zero carbon homes are the best way of dealing with greenhouse gas emissions from buildings.
谬论八：无碳房屋是对付建筑物温室气体排放的最佳选择。
The researchers estimated that emissions of carbon dioxide (CO2), the main greenhouse gas, from today's stock of vehicles, buildings, and power plants would probably drop to zero by 2050.
研究人员们估计，由现存的交通工具，建筑，发电厂排放的主要温室气体二氧化碳将在2050年之前降为零。
The least-cost option to lower the risk is to start now and steadily transform the global energy system over the coming decades to low or zero greenhouse gas-emitting technologies.
降低风险的最小开销方案就是现在启动政策并且在未来数十年内逐步将现在全球能量系统转变为低温室气体排放或零排放的技术。
Right now we told you Joule did all these experiments and he found out that for an ideal gas, that the limit in and ideal gas 0 case was that the eta J was equal to zero.
现在我告诉你们焦耳,做了所有这些实验,他发现对于理想气体,在极限情况下理想气体的ηJ等于。
So for an ideal gas then, dH/dp under 0 constant temperature, that has to be equal to zero.
所以对于理想气体,偏H偏p在恒温下，等于。
Under the assumption of stable zero dynamics, the whole system is semi-global asymptotically stable (Semi-GAS).
最后在零动态稳定的假设下，实现了整个系统的半全局渐近稳定。
The static pressure is greatest where gas flow is zero, that is, at the front of the motor.
静态的压力是最大的地方气体流量是零，即是在前面的汽车。
Hydrogen can replace acetylene, gas, liquefied petroleum gases such as carbon, with high calorific value, flame concentration, zero pollution, high efficiency, energy saving and easy.
氢气可以取代乙炔、煤气、液化气等含碳气体，具有热值高、火焰集中、零污染，生产效率高，节能方便等优点。
The design idea, principle scheme and executive result for restricting zero drift of gas sensors by means of closed loop control circuit are reported.
一种利用闭环控制电路抑制气敏元件零点漂移的设计思想、原理框图及实验结果。
It is found that the gas flow is mainly controlled by instantaneous arc power and the maximum of gas flow appears not at peak pressure, but at current zero.
结果显示，气流的改变主要受电弧瞬时功率控制，最大流量不是发生于压力峰值时刻而是出现在电流过零时。
I remember clearly that day is 20 degrees below zero, the streets are even micro-even gas.
我清清楚楚的记得那天是零下20摄氏度，街上的人是微乎气乎。
Ball valve fully open, the flow resistance is very small, almost zero, so the ball valve diameter is widely used in petroleum and natural gas pipelines because the pipeline cleaning easy.
球阀在完全开启时，流阻很小，几乎等于零，因此等径球阀广泛应用于石油天然气管线中，因为容易清扫管线。
For the natural gas concentrations found, only a catalytic combustion process can achieve 'near zero' pollutant emissions.
对于所测天然气，此催化燃烧过程可达到近零污染排放。
Using the model, the liquid holding efficiency and pressure drop of gas lifting flow with liquid flow rate being zero was calculated.
提出了零液流量气提流动的两相流水动力学模型，应用该模型计算了零液流量气提流动的持液率和压力降。
One experimental clean-energy car runs on natural gas. Another USES ethanol distilled from corn. A third has a zero-emissions electric motor powered by a hydrogen fuel cell.
一辆尚处于实验阶段的清洁能源汽车依靠天然气行驶。另一辆使用从谷物蒸馏而来的酒精。第三辆则装有由氢燃料电池提供能量的零排放发动机。
The stability of the welding arc depends mainly on the voltage and the gas ionization when current zero-crossing as well as the electron emission ability of the electrode.
其电弧稳定与否，主要取决于电流过零瞬间的电弧空间电离度、 电极发射电子能力及再引燃电压的上升速度。
The pressure in a perfect gas, being directly proportional to the kinetic energy of the molecules, has a lower bound of zero.
理想气体的压力与分子的动能成正比，它的下限为零。
The repetition of the ultrasonic sound and the experiment of zero velocity in gas flowmeter are tested using this speed measurement system.
利用该测速系统，进行了超声波的重复性测试，以及在以空气为介质的零流实验。
When the second derivative of the bubble number in unit bed volume with respect to gas velocity equals zero, the flow regime transition occurs. The model fits fairly well with the experimental data.
导出了当单位床层体积中气泡数目对气速的二阶导数为零时发生流型转变，该模型的计算机结果与实验数据吻合良好。
Oh yes, and Sub Zero Refrigerator, Viking gas range, Fisher Paykel dishwasher, vintage Stainless nickel counter tops and beautiful custom vintage styled cabinets.
对了，还有，以及SubZero牌电冰箱、维京煤气炉头、费舍尔和雪派克嵌入式洗碗机费、古典式不锈钢镍台面和斑斓的定制复古风橱柜。
Oh yes, and Sub Zero Refrigerator, Viking gas range, Fisher Paykel dishwasher, vintage Stainless nickel counter tops and beautiful custom vintage styled cabinets.
对了，还有，以及SubZero牌电冰箱、维京煤气炉头、费舍尔和雪派克嵌入式洗碗机费、古典式不锈钢镍台面和斑斓的定制复古风橱柜。
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