This circumstance means that cool molecular gas is located there, a vestige of the original gas-dust cloud from which not massive stars were formed, spawning HII zones. 这种情形意味着那里有冷分子气体,它是形成大质量高温星、产生HⅡ区的原始气尘云残余。
Surrounding it, obscuring clouds of dust and cold molecular gas are also present and can suggest other convoluted and fantastic shapes. 由尘埃与冷分子云气组成的黝黑遮光云气,并引领我们的视觉感官去体会各种卷曲与奇异的形状。
The dust precipitation principle of electric impulse cyclone and its application in the test on the treatment of molecular sieve tail gas in catalyst factory are introduced. 介绍了脉冲电旋风除尘器的工作原理及用其处理催化剂分子筛尾气的试验情况。
The Keyhole Nebula was recently discovered to contain highly structured clouds of molecular gas. 根据最近的观测发现钥匙洞星云中具有相当高结构性的分子云。
In this cavity tall pillars and round globules of dark dust and cold molecular gas remain where stars are still forming. 在此洞穴里,高大的云柱、由黯淡尘埃组成的圆形云球、冷分子气体云仍留在“正在形成恒星”的区域。
Here, a high concentration of dust and molecular gas absorb practically all the visible light emitted from background stars. 在这里,一团高密度的尘埃分子气体云吸收了背景恒星发出的所有可见光。
Star-forming regions don't seem to have enough molecular gas to keep up the star-formation rates we observe. 我们观察到恒星形成区域似乎并没有足够的分子气体来保持恒星形成率。
Progress of preparation of coal-based carbon molecular sieves for gas separation by pressure swing adsorption 变压吸附气体分离用煤基炭分子筛的制备研究进展
Relationship between the molecular structure and gas chromatographic retention index of alcohol isomer 醇类异构体气相色谱保留指数与分子结构的定量关系
Approximation Formulae of Elementary Function for the Transmission Probability of Molecular Gas Flow through a Tube 圆管分子流流导几率的初等函数拟合公式
Benson 'a group additivity principle was applied to the study on the relationship between the molecular structure and gas chromatographic retention value of chlorinated ben-zenes and fatty alcohols. 应用Banson基团加和法,对氯代苯,脂肪醇两类化合物分子结构与气相色谱保留值间的关系进行了研究。
Treatment of Molecular Sieve Tail Gas in Catalyst Factory by Electric Impulse Cyclone 用脉冲电旋风除尘器处理催化剂厂分子筛尾气
Collimation and Distribution on the Galactic Disk of Cold Molecular Gas Outflows Near Young Stellar Objects 年轻星体附近冷分子气体外流的准直性及其在银盘上的分布
According to the theory of particle transport and dynamics of molecular gas, the mathematic model of three-dimensional transient numerical simulation of indoor radon transport has been setup, and the different boundary condition has been offered. 根据粒子输运理论和气体分子动力学,建立了室内氡的三维瞬态传输模型,提出了与过去不同的边界条件。
To the low molecular weight gas, the accuracy of Standing method is the highest. 而对于低相对分子质量常规气体Standing方法计算精度最高。
Discussion of Gas Transport Molecular Quatity Molecular Selection Gas Bearings 对气体输运分子数的讨论
Tuning and Gain Characteristics of Stimulated Raman Scattering of CH_3F Molecular Gas CH3F分子气体中受激喇曼散射的调谐和增益特性的研究
Infrared emission measurement about molecular of gas and AI foil surface 气体分子和铝箔表面分子的红外辐射光谱测量
The molecular sieves of the microchannel of handful natural minerals have the function of purifying molecular gas pollution, whereas the ionic sieves of ultra-microchannel of most natural minerals are likely to purify ionic water contaminates. 极少数天然矿物微孔道分子筛效应孕育有净化分子型气体污染物的作用,而大多数天然矿物超微孔道离子筛效应却孕育有净化离子型水体污染物的作用。
Research the Correlativity of Aliphatic Acid Molecular Connectivity and Gas Chromatography Retention value 12种脂肪酸的分子连接性指数与其气相色谱保留值的相关关系研究
ACM theoretical calculation of the rate constants for the reactions of some alkyl radicals with molecular chlorine in gas phase 几种气相烷烃自由基与分子Cl2反应速率常数的ACM理论计算
Nonlinear Properties of Optically Pumped Molecular Gas Amplifier For Submillimeter Waves 光泵分子气体亚毫米波放大器的非线性特性
Molecular sieve gas phase dehydration could be used in alcohol dehydration, which could improve absorption dehydration efficiency, reduce equipment investment, and consume less electric energy. 酒精分子筛气相脱水工艺有利于酒精脱水和水分子的脱析,提高吸附脱水效率;可减少设备投资,生产运行耗电少;
Study on the Relationship between Retention Rules and Molecular Structures in Gas Chromatography 关于分子结构与气相色谱保留值规律的研究
EXPLORATIVE RESEARCH ON PRINCIPLE AND UTILITY OF A NEW SPACE PROPULSION SYSTEM Microwave plasma thruster ( MPT) is a space propulsion system that uses microwave to heat low molecular weight propellant gas to a high temperature. 微波等离子推进器的原理与应用研究微波等离子体推力器(MPT)属于微波电热推进器。
The Amendment of Vibration Caloric Receptivity of Water Vapour Molecular Gas under High Temperature 非谐项对高温水蒸汽分子气体振动热容量的修正
Mechanisms included in the analysis are water vapor and air transfer by gas convection and molecular gas diffusion, conductive and convective heat transfer, and sorptive effects. 模型中考虑的机理有:水蒸气与空气的对流与分子扩散,热传递与对流换热,吸附效应。
Organic ion intercalated layered cobalt hydroxide is an important class of organic-inorganic composite materials, it has received enormous attention on the basis of its molecular magnets, gas storage, catalysts and other properties. 有机插层的层状氢氧化钴是一类重要的有机无机复合材料,在分子磁体、气体存储、催化剂等领域具有广泛的应用前景。
Hence, a theoretical predictive framework of acoustic attenuation was developed, which is independent of experiential parameters. This framework could lead to the development of acoustic waves capable for quantitatively probe the thermodynamic and molecular properties of gas mixtures. 这样形成了一套不依赖于经验参数的声衰减的理论预测方法,必将使得利用声波作为定量检测混合气体热力学特性和分子特性的工具成为可能,进一步推动声气体传感技术的发展。