1) flame noise of tracer ejection
曳光弹火焰喷射噪声
2) flame noise
火焰噪声
1.
Results show that jet flame noise,and the combust noise play great role in the flame noise.
研究了射流火焰噪声和撞击式火焰噪声,对比两者以探求撞击流对火焰稳定性的影响。
2.
The standard deviation of four-nozzle impinging flame noise was greater than that of the two-nozzle impinging flame noise,but the change of the standard deviation was the reverse.
四喷嘴工况的撞击火焰噪声的标准偏差值要大于两喷嘴,但标准偏差随工况的变化小于两喷嘴,说明四喷嘴撞击火焰燃烧剧烈但稳定。
3) flame noise
火焰噪声<声>
4) jet fire
喷射火焰
1.
Therefore, many simulation tests are conducted for the thermal response of LPG tanks when they are exposed to the jet fire.
为此,对液化石油气储罐在喷射火焰环境下的热响应情况进行了大量的模拟试验研究。
2.
In order to prevent such accidents, it is important to study the thermal response of tanks exposed to jet fire.
研究容器在喷射火焰作用的响应规律是预防事故发生的关键。
3.
Simplified method was adopted to analyze the temperature model of vertical pipeline under jet fire loading in marine platform by combing the fire energy with material properties.
将喷射火焰能量与钢材的性能相结合,采用简化处理的办法,建立在火灾荷载作用下平台立管温度的变化模型,将分析结果与文献的有关试验结果做了对比,吻合较好。
6) jet injection noise
喷射噪声
1.
The paper quantitatively analyses the relation between A sound pressure grade of the high pressure pure water jet injection and jet injection pressure,pressure pulse,the target distance,and mainly educes that the jet injection noise doesn't reduce when the pressure pulse reduces.
定量分析了高压纯水射流喷射噪声A声压级与射流压力、压力脉动及射流靶距的联系,主要得出了喷射噪声在常见条件下随着压力脉动的减小反而略有增加的结论。
补充资料：M196曳光弹
m196曳光弹配用于m16/m16a1等使用m193弹的步枪，以红色弹尖为识别标记，用于弹道观测、产生纵火效果或打信号。射击时，膛内火药燃气在垫片上冲出一个穿孔，点燃引燃药剂，引燃剂再引燃传火剂，最后点燃曳光剂，弹头射出枪口一定距离后，垫片被药剂燃气冲脱，弹头开始曳光。
全弹长 57.4 mm
弹壳长 44.7mm
弹头长 23.1mm
全重 177格令
弹头重 54格令
发射药类型 wc844 或 imr8208m
发射药重 28.5格令 或 25.3格令
膛压 52000 psi
初速 975m/s
中国qsb91式匕首枪
说明：补充资料仅用于学习参考，请勿用于其它任何用途。