1) non-uniform cross section acoustic waveguide
变截面声波导管
1.
Study on the equivalent circuit of non-uniform cross section acoustic waveguide;
变截面声波导管等效电路研究
2) tapered waveguide
截面渐变波导管
3) non-uniform wave guide
变截面波导
1.
Based on sound absorption coefficient equations derived using the theory of non-uniform wave guides,the wedge\'s sound absorption performance was optimized by combining the program\'s calculations and MATLAB\'s optimization toolbox.
以变截面波导理论建立的吸声系数方程为依据,自编MATLAB计算程序,由预测得到的材料参数计算了尖劈的吸声系数,并与实验结果作了对比,表明计算值与测试值吻合较好。
4) variable cross-section shock tube
变截面激波管
5) variable cross-section tube
变截面管
1.
Study on the hydrodynamic performance of heat exchanger with variable cross-section tube bundle;
变截面管换热器的流体力学性能研究
6) acoustic waveguide
声波导管
1.
Based on the theory of electric transmission line and the electroacoustic analogy method, the T-type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis.
依据电传输线理论和声电类比原理,推导出了管中为平面波时有限长均匀截面声波导管的等效电路,并通过等效电路分析法推导出了其阻抗转移公式。
2.
Based on the theory of electric transmission line and the electroacoustic analogy method, the T_type equivalent network of the acoustic waveguide which is uniform and finitely long is derived in which plane wave propagate and the formula of its impedance transfer is obtained as well by means of the equivalent circuit analysis.
依据电传输线理论和声电类比原理,讨论并推导出了管中为平面波时有限长均匀截面声波导管的等效T型网络,并通过等效电路分析法推导出了其阻抗转移公式,为声波导管阻抗分析提供了一种新方法,使声波导管的设计更简便。
补充资料：变截面积流量计
分子式：
CAS号：
性质：是利用节流原理来测量流量的仪器。它采用一流通截面积可以变化的节流部件。当流体流过时，流量与节流部件的流通截面积大小有关，由截面积大小可求得流体流量。节流部件的流通截面积虽随流量的大小而变，但它前后的压差却不变，故又称恒压降流量计。变截面积流量计有转子流量计、冲塞式流量计。
CAS号：
性质：是利用节流原理来测量流量的仪器。它采用一流通截面积可以变化的节流部件。当流体流过时，流量与节流部件的流通截面积大小有关，由截面积大小可求得流体流量。节流部件的流通截面积虽随流量的大小而变，但它前后的压差却不变，故又称恒压降流量计。变截面积流量计有转子流量计、冲塞式流量计。
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