Volunteers were told to think about yawning while they breathed either normal air, pure oxygen, or an air mixture with an above-normal level of carbon dioxide.
当志愿者在正常的空气中、纯氧的环境下，或者混有超过正常的二氧化碳含量的空气中呼吸时，他们被要求要想着打哈欠。
Volunteers were told to think about yawning, while they breathed either normal air, pure oxygen, or an air mixture with an above-normal level of carbon dioxide.
当志愿者在正常的空气中、纯氧的环境下，或者混有超过正常的二氧化碳含量的空气中呼吸时，他们被要求要想着打哈欠。
Powdered material may form explosive dust-air mixture.
粉状材料可形成爆炸性粉尘空气混合物。
For the dangerous sites with explosive air mixture: 2 division.
爆炸性气体混合物危险场所：2区。
Control factors in surface combustion process of gas-air mixture are briefly analyzed.
简要地分析了煤气混合气表面燃烧过程的控制要素。
When the volume and between vent, oil and gas air mixture interlinked from vent discharge.
当齿间容积与排气口相通时，油气混合空气从排气口排出。
The authors give the method to convert manufacturing gas with LPG-air mixture in Shiyan city.
根据十堰市的实际情况，提出液化石油气空混气置换人工煤气的方案。
Studies are made on the effects of stuff body on the stabilization of coal-air mixture flames.
本文对于燃烧通道中钝体对煤粉-空气两相火焰的稳定能力进行了研究。
If a set point value is exceeded, the fuel-air mixture is adjusted accordingly by an integral controller.
如果一个集合点值被超过时，燃料空气混合物进行相应的调整由一个完整的控制器。
The results showed that the fuel-air mixture suitable for the LPG engine start is leaner than that of the gasoline engine.
试验结果表明：LPG发动机成功起动所需的混合气浓度比汽油发动机的稀。
The thermal ignition experiment system of gasoline-air mixture in confined space under the conditions of hot wall is designed.
设计了受限空间内高温热壁条件下的油气热着火的实验系统。
Stoichiometric ratio of fuel-air mixture is 0.4. Convection heat exchange has adopted as a boundary condition of external surface.
燃料-空气混合物的当量比为0.4，燃烧器外壁面与环境采用对流换热边界条件。
There are different kinds of valves ranging from simple hand operated valve to fully automatic valve for control of gas-air mixture.
有很多从简单的手阀等各种阀到全自动控制天然气混空气阀。
The water-air mixture is drained through connection the connection pipeline may be used for drainage, however it must not be lockable.
水-空气的混合液是经接口排泄，这个管路可以用作泄放，但是不能关闭。
The inactivation of Escherichia coli with bipolar pulsed dielectric barrier discharge in water-air mixture was studied experimentally.
采用双向窄脉冲介质阻挡气液两相放电技术，对大肠杆菌灭活效果进行了试验。
The applicability of converting from manufactured gas to natural gas-air mixture is analyzed through calculation and gas appliance test.
通过计算与燃具试验，分析了天然气混空气转换人工煤气的适用性。
I was surprised to notice that air consumed is not used as a factor for nitrogen absorbed when the type of air mixture (nitrox or heliox) is.
我很惊讶地发现当使用混合气体(氮氧或氦氧)时耗气量没有作为氮气吸收的一个指标。
The heating device (12) of the invention comprises at least one organization (17) for stabilizing the to-be ignited gaseous fuel-air mixture.
本发明的加热装置(12)包括至少一个用于使得所述待点燃的气态的燃料-空气混合物稳定的机构(17)。
Convection on the lower deck of the air mixture, heat, water vapor and aerosols can go to transportation, which led to a variety of weather events.
对流使上下层空气混合，热量、水汽和悬浮颗粒可以往上输送，从而引起了各种天气活动。
Design of air mixture receive box and measuring accuracy wet-bulb temperature affect the measuring accuracy directly in air enthalpy difference test system.
空调器焓值法测试台中，空气接收混合箱的设计和湿球温度的测量准确度直接影响着测试精度。
Dropwise condensation heat transfer characteristics of saturated steam-air mixture were investigated experimentally on a vertical organic-film-coated plate.
本文对饱和水蒸气和空气的混合物在垂直表面上滴状冷凝传热特性进行了实验研究。
Under the same voltage, the tap water-air mixture can bring the strongest discharge current, the pure water-air is the second, and the pure air is the least.
在相同电压作用下，自来水-空气混合体的放电电流最大，纯净水-空气混合体的次之，单纯空气的最小。
A combination facility, which consists of a shock tunnel and a shock tube, was used for studying ignition and supersonic combustion of premixed hydrocarbon fuel-air mixture.
采用激波风洞-激波管组合设备对预混的碳氢燃料——空气混合物的点火与超声速燃烧进行了研究。
When the CH4-air mixture approaches the lean fuel state, the flame speed accordingly decreases, the flame cone rising and retreating downstream to the area with lower flow speed.
从化学计量向贫燃料状态靠近时，预混火焰强度减弱，火焰传播速度减小，锥形火焰面逐渐增高，退到流速较低的下游区域；
There are many factors affecting explosion power of fuel air mixture, large numbers of them are qualitative and uncertain factors, and the relations between them are very complicated.
本文基于人工神经网络理论及方法，在合理选取影响爆炸威力主要因素的基础上，构建了燃料空气混合物爆炸威力评估模型。
The present experimental investigation attempts to understand the suppressing effect of metal mesh construction on deflagration waves of premixed ethyne air mixture in unconfined space.
实验旨在研究金属丝网结构对开敞空间预混乙炔-空气爆燃波的抑制效果。
In addition, a hot, burned gas generated from the shock tube was used as pilot flame for igniting the premixed and preheated supersonic hydrocarbon-air mixture generated in the shock tunnel.
此外，由燃烧驱动激波管产生的高温燃气作为引导火焰点燃激波风洞产生的预混与预热的超声速碳氢燃料——空气混合物。
According to the characterr istics of Anqing city, the author advises to use LPG-air mixture for the main gas supply, and simply discusses on the selection of equipment and technology problems.
通过分析安庆市在实施液化气混空气供气条件的基础上，讨论了相关的实施设备、技术问题等。
Flash fire - the combustion of a flammable gas or vapor and air mixture in which the flame propagates through that mixture in a manner such that negligible or no damaging overpressure is generated.
暴燃-可燃气体或蒸汽及空气混合物的燃烧，火焰通过混合物传播，产生了可以忽略的超压或不会造成损坏的超压。
As a new way of combustion, catalytic combustion breaks the flammable limits of conventional flame combustion, and realizes the combustion of ultra-natural gas/air mixture under the flammable limits.
催化燃烧作为一种新的燃烧方式，打破了传统火焰燃烧的可燃界限，实现了贫甲烷/空气混合物在可燃界限以下的燃烧，燃烧效率高，提高了能源利用率。
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