研究二程的“孔颜乐处”观，在现代社会中具有很强的时代意义和价值。
In modern society, the study on "Confucius and Hui's Cheerfulness" is of great time significance and value.
应用五孔感头测定沿程截面内气流的切向角、轴向速度、气流静压和旋流数的分布。
A five hole probe is used for measuring the tangential Angle of flow, axial velocity, static pressure of flow and swirl number in the flow sections of the conveying system.
此外由不同循环应力比下孔压时程曲线确定出临界循环应力比。
Furthermore, the critical cyclic stress ratio is determined according to the time history curves of pore water pressure under different cyclic stress ratios.
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