本文应用WKB方法研究了在弱非均匀层结大气中，当基本气流具有弱垂直切变时，重力惯性内波的稳定性问题。
This paper discusses the stability of internal inertial gravity wave in the heterogeneous stratified atmosphere when basic flow appears to be weak vertical shear by the WKB method.
计算结果表明，轴向气流对电弧稳定性起重要作用。
Computational results show that the axial gas flow play the main role on the arc stability.
前言：试图通过简单的“输入—输出”关系，判别煤粉气流火焰稳定性。
Through a simple "input output" relationship the ascertainment of pulverized coal flow flame stability is attempted.
本文采用与时间有关的线性微扰理论，分别讨论了旋转气流、纵向气流的作用，以及它们共同的作用下电弧螺旋不稳定性的特征。
The linear time perturbation theory is used in this paper, the effects of rotary flow, axial flow and both of them to the arc stability are discussed respectively.
模拟计算了各种工况下的发动机性能：怠速工况降低了残余废气系数，提高了进气流速，稳定性得到改善；
We simulate engine performance in various operating conditions:in idle condition, it reduces the residual gas coefficient and increases airflow velocity, so that idle stability is improved.
对影响电感耦合等离子体系统稳定性的射频功率、氩气流速、进样条件等因素进行了考察，提出了判断和减小ICP 系统漂移的方法。
Some factors influencing ICP system stability are examined in this paper. These factors are R. F. power, coolant flow, sample introduction etc. The methods to diagnose and reduce drift are proposed.
煤粉浓度对煤粉气流着火及燃烧稳定性的影响较大。
Pulverized coal concentration in primary air stream has an important effect on ignition and combustion stability.
煤粉浓度对煤粉气流着火及燃烧稳定性的影响较大。
Pulverized coal concentration in primary air stream has an important effect on ignition and combustion stability.
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