1.
LAMINAR COMBUSTION CHARACTERISTICS OF PREMIXED PROPANE/HYDROGEN/AIR FLAMES
丙烷-氢气-空气预混层流燃烧特性研究
2.
Influence of Initial Pressure on Flame Propagation Characteristics of Natural Gas-Hydrogen-Air Mixture
初始压力对天然气-氢气-空气混合气火焰传播特性的影响
3.
Hydrogen is a useful gas for balloons. It is lighter than air.
氢气对于气球来说是一种有用的气体，它比空气轻。
4.
Phosphine is a toxic gas which ignites spontaneously in air.
磷化氢是一种有毒气体，在空气中可以自燃。
5.
When you let go a balloon filled with hydrogen it will rise up into the air.
你一撒手，充满氢气的气球就会升上天空。
6.
Numerical Predictions of Hydrogen-Enriched Premixed Methane/Air Flames
添加氢气的甲烷/空气预混火焰结构的数值预测
7.
The optimisation of reaction rate parameters for H2/Air combustion using genetic algorithms
应用遗传算法优化氢气/空气燃烧反应系数
8.
ambient hydrocarbon analyzer
环境空气中碳氢化物含量分析仪
9.
Analysis of Hydrocarbon in Air aud Liquid Oxygen
原料空气和液氧中碳氢化合物的分析
10.
Experimental Study on Hydrogen Recovery Using Hollow Fiber Composite Membrane;
中空纤维复合膜分离氢气的实验研究
11.
A Study on the Regeneration and Utilization of Lithium Hydroxide Used as Gas Purificant;
空气净化用氢氧化锂的再生利用研究
12.
Study on the hydrogen evolution performance of negative current collector for zinc-air battery
锌-空气电池负极集流体析氢性能研究
13.
Study on hydrogen peroxide residue and degradation in air
空气中过氧化氢残留降解的实验研究
14.
Gaseous hydrogen systems must be purged of air, oxygen, or other oxidizers prior to admitting hydrogen to the systems, and purged of hydrogen before opening the system to the atmosphere.
在氢导入之前，必须净化气态氢系统，以去除空气、氧或其它氧化剂；
15.
H_2/AIR MIXING ENHANCEMENT AND FLAME STABILIZING SCHEMES IN GASEOUS HYDROGEN SUBSONIC COMBUSTOR OF RAMJET
气氢亚燃冲压发动机燃烧室氢和空气增混技术及稳焰方案
16.
Investigation of Streamwise Vortex Enhanced H_2/Air Mixing in a Gaseous Hydrogen Fueled Ramjet;
氢冲压发动机中用流向旋涡强化气氢与空气混合的研究
17.
We will start with a cubic inch of hydrogen at atmosphere pressure( or the air pressure at the earth's surface).
我们从大气压力（地球表面的空气压力）的一立方英寸氢气开始。
18.
Helium is also lighter than air, but it costs a lot of money. So balloons were (and are) usually filled with hydrogen.
氦也比空气轻，但价格昂贵，因此气球过去(现在也一样)通常都装氢气。