Orchard without precaution will suffer heavy loss in case cold wave occyrs.
如果寒潮发生，不采取预防措施的果园将会受到严重损失。
What kind of changes are now spreading in the case of an electromagnetic wave?
但是现在在电磁波的例子中，传播的是哪一类变化呢？
In this case the wave is said to have been diffracted.
在这种情况下，据说，波发生了衍射。
Orchard without precaution will suffer heavy loss in case cold wave occurs.
如果寒潮来袭，不采取预防措施的果园将会遭受严重损失。
This obviously is the limiting case of the idealized monochromatic wave.
这必然是理想化的单色波的极限波形。
This obviously is the limiting case of the idealized monochromatic wave.
这必然是理想化的单色波的极限波形。
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