zoomyadj.利用促镜拍摄的zoomv.急速上升；嗡嗡作响；（镜头）拉近（拉远）n.急速上升；嗡嗡声；(摄影)变焦zooming reduction无级缩小倍率zoomorphic column兽形柱Zooming Algorithm变焦算法Zooming technology数值缩放技术zoom-lens system变焦透镜系统zoom transferscope变焦转绘仪zoom magnification无级放大倍率zoom copy function无级变倍复印机功能zoomed-out window缩小窗口zoom optical system变焦距光学系统