[电子] 衍射栅换能器 diffraction grating: 绕射栅; 线射光栅; 衍射光栅,绕射光栅; 衍射栅acoustic diffraction grating: 声衍射栅blazed diffraction grating: 闪耀衍射光栅coded diffraction grating: 编码衍射光栅concave diffraction grating: 凹光栅; 凹衍射光栅下载手机词典可随时随地查词查翻译