通过污水处理工艺控制矩阵图，在污水成分、气候、进水流量变化时，可以方便、快捷的调整污水处理控制工艺，满足污水处理厂安全、稳定运行的要求。
When components of wastewater, climate or inflow changes, using matrix chart can easily and quickly adjust wastewater disposal technics to meet safety, stable requirements of sewage-treatment plant.
运用主成分分析方法，经过矩阵变换，提取振动信号的主要信息，从而实现对振动噪声源的分析。
The main vibration signals can be obtained by reducing its dimensions through matrix conversion in the principal component analyzed, and realize the analysis to the vibration noise source.
由化学成分的因子载荷矩阵得到四个主因子。
Four main factors were obtained from the factor load matrix.
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