acoustic diffractionsound diffraction声: sound; voice衍射: diffraction; inflection光声衍射: optical acoustic diffraction声衍射栅: acoustic diffraction grating一声衍射: first sound diffraction下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:声衍射,即可在微信中查询翻译