谱矩阵 meaning in English

spectrum matrix

2 . deduce the spectrum matrix of six - tire input under the conditions that the tractor is two - axle and four - wheel ( the rear wheel is double - tire ) and the artillery is one - axle and two - wheel
研究了牵引车为两轴四轮(后轮为双胎轮) ，火炮为单轴两轮的六轮输入谱矩阵。
In the theoretical research part of the project , liang zhi yong adopted the pseudo - spectral matrix method to simulate the friction reduction by microbubble on flat plates numerically ; and lin li ming used the model of ipsa ( inter - phase slip algorithm ) provided in phoenics to study this problem
在微气泡减阻基金项目理论研究方面，梁志勇采用伪谱矩阵方法对平板微气泡减阻进行了数值模拟；林黎明则主要是采用phoenics软件提供的ipsa模型进行平板微气泡减阻计算。
5 . the multi - point effect in frequency domain is studied , and the analytical procedure is simplified to some extent , that is , the responding data is accurate enough only with the input according to the first four degressively arranged eigenvalue of earthquake power spectrum matrix . there are disaccordant conclusions of multi - point input analys
5 、研究了频域内地震动的多点效应，并对计算过程进行了一定程度的简化，即只需要计算输入地震动功率谱矩阵从大到小排列的前4个特征值所对应的地震动的动力反应。