波的衍射是指在媒质中由于有障碍物或其他的不连续性而引起波改变传播方向的现象。如障碍物的尺寸远大于波长，则衍射不明显;如障碍物的尺寸与波长相近时，,则衍射最明显;如障碍物的尺寸远小于波长时，虽然还有衍射,但是在障碍物背部边缘附近将形成一个没有波的区域(即声影区)。
双语例句原声例句
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利用编写的程序计算并分析了一种用于激光取样光栅te波和TM波的衍射特性。
The diffraction properties of TE and TM polarizations for a beam-sampling grating are numerically analyzed with this program.
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通过利用严格的耦合波理论计算光栅衍射效率的方法，分别编制出了计算te波和TM波的衍射效率程序。
Using the method of rigorous coupled-wave theory to compute the diffraction efficiency of a grating, the program for calculating diffraction efficiency for both te and TM polarization is made.
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为研究粗糙海面中的岛屿对雷达波传播的影响，本文采用比较简单而又符合实际的模型，计算了电波在粗糙海面条件下，岛屿对雷达波的衍射损耗。
To study the influence of an island on radar based on coast, we utilize simple and realistic model to calculate diffraction loss over an island in the presence of rough sea surface.
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But for now let's simply say that we have a diffraction which we know occurs only by wave-like behavior and it involves the use of x-rays. Why x-rays?
但现在让我们来简单假设一下,我们知道,只波才发生衍射,而且衍射涉及了X光的使用，为什么是X光？
应用推荐
$firstVoiceSent
- 来自原声例句