燃气火焰的声发射在出现上有其突发性，与火焰的不稳定工况有关。
The sound emission of the flame appears a kind of outburst related to the stability of the flame.
前言：高炉轴流风机处于不稳定工况区运行或出现“抢风”都会造成事故。
Unstable operation or tacking for the axial fan of the blast furnace can cause accidents, which can be avoided by adjusting the Angle of the leading blade.
为解决231a_4g型化油器在不稳定工况下存在的问题，采用了一种化油器附加控制系统。
An additional control system has been applied in 231a_4g model carburetor in order to improve its performance under unsteady running conditions.
文章详细讨论了原油管道瞬变流动的数学描述及有限差分求解方法，并分别分析了对简单管道和长输管道不稳定工况的仿真。
Discussed are the hydraulic transient equations of fluid transient in pipelines and the finite differential solution as well as the practical simulation of short or long pipelines.
简要论述局部扇风机（轴流式通风机）产生不稳定工况的原因和变化规律，提出以分流器消除风机特性曲线驼峰区段、使其工作运行稳定的技术措施。
The technical measures are given out by which the hump zone of characteristic curve of the local fan can be eliminated using a current divider and the operaiting stability of the fan can be improved.
该方法使得在稳定工况下判别两相流系统的不稳定边界和稳定裕度成为可能。
Application of this method would make it POssible to identify instability boundary of two - phase flow under stable operation conditions of two - phase flow system.
在自然循环水回路上进行了两相流密度波不稳定性的实验研究，得到了不同工况下的实时脉动曲线。
This paper describes the experimental study of two phase density wave oscillation in natural circulation loop. The oscillation curves under different conditions are obtained.
混流式水轮机偏离最优工况运行有可能诱发机组的不稳定运行。
Francis turbine's operation out of the optimal mode may induce unstable operation of the generating unit.
测试结果表明，调节阀处于不稳定工作状态即阀杆振动工况取决于脉动压力与阀杆固频率是否同频，并非其脉动压力值大小；
These results show that the vibration of control valve rod depends on if its frequency and one of dynamic pressure pulse is same but not the magnitude of pulse value.
该控制器克服了混合煤气工艺过程工况不稳定的不定因素所带来的影响，实时控制结果表明，这种控制器的采用是有效而又合乎实际的。
The influence caused by the unsuitability of gas mixing process is overcome by the controller. The real-time control effects show that the application of this controller is effective and realisable.
该控制器克服了混合煤气工艺过程工况不稳定的不定因素所带来的影响，实时控制结果表明，这种控制器的采用是有效而又合乎实际的。
The influence caused by the unsuitability of gas mixing process is overcome by the controller. The real-time control effects show that the application of this controller is effective and realisable.
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