查询词典 gases

Stars such as Sir Paul McCartney and Chrissie Hynde are lending their voices to share what science has already proven-that the meat industry is one of the leading sources of the greenhouse gases that lead to global warming.

星级如主席先生保罗麦卡尼和chrissie hynde贷款是他们的声音，分享什么科学已经证明，即肉类工业是其中一个主要来源，温室气体导致全球变暖。

The observational study of extragalactic H2O megamaser sources and molecular emission lines associated with AGNs is a very efficient tool to investigate characteristics of certral sources in AGNs and circumnuclear toruses of gases and dusts.

对与活动星系核成协的河外超脉泽源及分子谱线的观测和研究是探测和研究活动星系核核区中央源、拱核气体和尘埃环性质的非常有效的工具。

Greenhouse gases are not the only climatically active ingredients that industry, farming and land clearance add to the atmosphere.

工业、农耕、和整地所释放到大气中，对气候有影响的成份，不仅止于温室气体。

Dehydration process based on hollow fiber composite membrane is one of the crucial and effective methods to remove water vapor from industrial gases such as light hydrocarbon, compressed air, natural gas and so on. Dehydration of propylene with VP method was studied in the thesis. We prepared the PVA/PS、CS/PS and PVA-CS/PS hollow fiber composite membranes by spread method. The permeation behavior of water vapor among coagulable light hydrocarbons through composite membranes and asymmetric membrane was researched by vapor permeation method. Also a differential mathematical model was established which can describe dehydration of gas phase propylene.

本论文以采用蒸气渗透法脱除丙烯中微量水分为目标，制备了 PVA/PS、 CS/PS、PVA-CS/PS 中空纤维复合膜；研究了可凝性轻烃蒸气中的微量水分在复合膜、非对称膜中的渗透行为，建立了描述丙烯气相脱水的数学模型，并进行了模拟计算；深入探讨了水蒸气在交联 PVA 致密膜中的渗透机理。

Dehydration process based on hollow fiber composite membrane is one of thecrucial and effective methods to remove water vapor from industrial gases such aslight hydrocarbon, compressed air, natural gas and so on. Dehydration of propylenewith VP method was studied in the thesis. We prepared the PVA/PS、CS/PS andPVA-CS/PS hollow fiber composite membranes by spread method. The permeationbehavior of water vapor among coagulable light hydrocarbons through compositemembranes and asymmetric membrane was researched by vapor permeation method.Also a differential mathematical model was established which can describedehydration of gas phase propylene.

本论文以采用蒸气渗透法脱除丙烯中微量水分为目标，制备了 PVA/PS、CS/PS、PVA-CS/PS 中空纤维复合膜；研究了可凝性轻烃蒸气中的微量水分在复合膜、非对称膜中的渗透行为，建立了描述丙烯气相脱水的数学模型，并进行了模拟计算；深入探讨了水蒸气在交联 PVA 致密膜中的渗透机理。

We offer colorimetric gas detection tubes for quick and easy detection of over 300 gases and vapors.

我们提供色气体检测管，可快速方便地检测气体和超过300个蒸汽。

The paper has experimentally studied the explosive limit ed oxygen concentration and critical oxygen concentration of effect of coal mine combustive gases.

目前对可燃性气体的临界氧浓度的研究大多数都是对单元气体进行的，通过对煤矿可燃性气体的爆炸极限氧浓度和临界氧浓度进行的实验研究，对煤矿可燃性气体临界氧浓度的影响因素进行了分析，得出的数据及结论为煤矿瓦斯的安全防爆工作提供了理论基础。

The two-dimensional plane shock wave focusing with the parabolic reflectors in combustive gases is numerically simulated, and the ignition characteristics of the detonation initiation are investigated.

数值模拟了二维平面激波从抛物面上反射在可燃气体中聚焦的过程，研究了形成爆轰波的点火特性。

Finally, suitable correlation of flow boiling with pure refrigerants in horizontal tubes, condensation heat exchange factor of steam containing non condensable gases and air-side thermal performance of condenser are selected by means of programming calculation.

最后用自编的专用程序计算、拟合了双相变换热器的水平光管内沸腾和汽侧冷凝的换热关联式。

The series H·2H·H3 rotary piston vacuum pump is a sort of vacuum pro-duction equipment suitable for pumping ordinary gase and condensable gases.

H·2H·H3型系列滑阀式机械真空泵是抽除一般性气体或含有少量可凝性气体的真空获得设备之一。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。