focal plane shutter 焦点平面快门 ; 帘幕式快门 ; [摄] 焦面快门 ; [摄] 焦平面快门

metal focal plane shutter 钢片快门

electronically-controlled focal-plane shutter 电子控制焦平面快门

focal aperture plane shutter 焦面快门

focal plane steel shutter 焦平面钢片快门