Grating
01
格栅, 栅栏
a covering with parallel or crossed bars, used to block a passage while allowing air or light to pass
例子
A metal grating covered the drain to prevent debris from entering.
一个格栅金属覆盖了排水沟，以防止杂物进入。
02
炉栅, 格栅
a frame of iron bars designed to hold a fire in a fireplace or furnace
例子
The old fireplace had a cast-iron grating for cooking.
旧壁炉有一个铸铁炉栅用于烹饪。
03
衍射光栅, 光学光栅
an optical device with many parallel grooves that disperses a beam of light or other electromagnetic radiation into its component wavelengths to produce a spectrum
例子
A diffraction grating split the laser beam into multiple colors.
一个衍射光栅将激光束分成多种颜色。
