And remember: when waves of light are shifted by half a wavelength, that means one wave's crests line up with the other's trough, causing destructive interference.
当光波移动半个波长时，这意味着一个波的波峰与另一个波的波谷对齐，从而导致相消干涉。
Crest line
原声例句
Crash Course Physics 速成课物理
英语百科
Ridge
![A mountain ridge in Japan](/Images/godic/202501/06/Tsubakurodake_from_Otenshodake_2002-8-224155.jpg")
![A stratigraphic ridge within the Appalachian Mountains.](/Images/godic/202501/06/Bristol_tenn_ridgelines24155.jpg")
![The edges of tuyas can form ridges.](/Images/godic/202501/06/The_Table14155.jpg")
A ridge or mountain ridge is a geological feature consisting of a chain of mountains or hills that form a continuous elevated crest for some distance. Ridges are usually termed hills or mountains as well, depending on size. There are several main types of ridges:-
- walton law
- Walton malleable retractor
- Walton needle holder
- Walton operation
- Walton primrose
- Walton, Sir William Turner
- Waltons, The
- Walton strabismus hook
- Walton syndrome
- Waltonville
- Waltraud
- waltron
- waltrons
- Waltrop
- waltrot
- Waltr syndrome
- waltsome
- waltt
- Walt Whitman
- Walt Whitman Bridge
- walt whitman bridges
- walt whitmen
- walty
- Waltyer canal duct
- waltz algorithm