形容词

名词

1. 栅栏；格子；格栅
A grating is a flat metal frame with rows of bars across it, which is fastened over a window or over a hole in a wall or the ground.

2. （声音）刺耳的
A grating sound is harsh and unpleasant.

1. optical device consisting of a surface with many parallel grooves in it
disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum

Synonym: diffraction grating

2. a frame of iron bars to hold a fire

Synonym: grate

3. a barrier that has parallel or crossed bars blocking a passage but admitting air

Synonym: grate