1) thermoacoustic oscillation
热声振荡
1.
Two of visual thermoacoustic oscillation demonstrators are introduced.
介绍制作的2套可视化型的热声振荡演示装置。
2.
Based on the model, autoregressive power spectrum of the system sound time series is obtained and analysis to its frequency characteristics are presented, which leads to the observation of “frequency combination effect” of subcooled boiling thermoacoustic oscillation.
在此基础上得到系统声压波动时序的自回归功率谱并分析其频谱特性；发现了管内欠热沸腾热声振荡的“频率聚合”特性；近似验证了系统“声放大”区的存在。
2) thermo-acoustic combustion instability
热声耦合振荡
3) ultrasonic
[英][,ʌltrə'sɔnɪk] [美]['ʌltrə'sɑnɪk]
超声振荡
1.
Through orthogonal experimental design,the preparation of iron oxide nanometer particles by ultrasonic-solid phase reaction was studied.
研究了纳米氧化铁颜料的制备工艺,采用超声振荡和固相法相结合的方法合成纳米氧化铁。
4) ultrasonic vibration
超声振荡
1.
The optimum conditions were as follows:PVA 3g,H_2O 20mL,H_2SO_4 8g,ultrasonic vibration 80min,reaction temperature 55℃.
利用超声振荡,聚乙烯醇(PVA)与硫酸进行酯化反应制备聚阴离子膜材料。
2.
The use of ultrasonic vibration in acetic acid extraction of Ca2+ from wollastonite increased obviously the extraction ratio of Ca2+ ion.
研究了超声振荡技术应用于乙酸萃取硅灰石时的钙离子萃取率。
6) ultrasonic surge
超声振荡
1.
0 nm has been prepared with the sol-gel method,and use ultrasonic surge.
用溶胶-凝胶法以超声振荡方式制备出粒径为37。
补充资料：热声振荡液面计（thermalacousticoscillationlevelgauge）
热声振荡液面计（thermalacousticoscillationlevelgauge）
一根细金属管上部封闭，把它做成一喇叭口，口上蒙一橡胶薄膜（或金属薄膜），另一端开口。当上端处于室温，下端接近低温液体时，由于低温气体不断进入开口的管子向上运动到热端，受热膨胀而形成纵向的振荡称之为热声振荡，在开口端经过低温液体时，可在喇叭口的振荡膜上感受到振荡有一个突变，用它可以测得液氢或液氦的液面高度。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条