Phenomenon of the change in velocityofpropagation of monochromatic radiations in a medium as a function of the frequency of these radiations.
在介质中传播的单色光改变其传输速度的现象,并由该辐射的频率所决定的。
2
Meanwhile, the influences of pipeline internal pressure, wall thickness, crack arrest length and initial crack velocity on the crack driving force (crack propagation) are further studied.
进而分析了管道内压、壁厚、裂纹止裂长度和初始裂纹速度对裂纹驱动力(也即裂纹扩展)的影响。
3
The results show that it is essential to consider the factor of heat propagationvelocity.