“楔形物”用英语怎么说

Green和Pratt使用旋转镜头的摄影机,其具有一种爆发性的楔形物.Green and Pratt employed a rotating - mirror camera with an explosively driven wedge.光的干涉发生在折射率为m的薄的透明的楔形物里.Optical interference takes place in a thin transparent wedge of refractive in...