shutter

noun

1. a hinged blind for a window

2. a mechanical device on a camera that opens and closes to control the time of a photographic exposure

verb

1. close with shutters

e.g. We shuttered the window to keep the house cool

1. (照相机的)快门
The shutter in a camera is the part which opens to allow light through the lens when a photograph is taken.

e.g. There are a few things you should check before pressing the shutter release.
按下快门之前有几个地方要检查一下。
e.g. ...a slow shutter speed.
缓慢的快门速度

2. 百叶窗
Shutters are wooden or metal covers fitted on the outside of a window. They can be opened to let in the light, or closed to keep out the sun or the cold.

e.g. She opened the shutters and gazed out over village roofs.
她打开了百叶窗，向外俯视着村里房子的屋顶。

1. 快门速度：曝光方式(Exposure)和快门速度(Shutter):对于线阵工业相机都是逐行曝光的方式,可以选择固定行频和外触发同步的采集方式,曝光时间可以与行周期一致,也可以设定一个固定的时间;面阵工业相机有帧曝光、场曝光和滚动行曝光等几种常见方式,