Definition of auto-exposure in English:

1A device which sets the exposure automatically on a camera.

1. 1.1mass noun The facility to set exposure automatically.
   自动曝光（功能）
   a camcorder with auto-exposure

   Example sentencesExamples

   • Getting correct exposure with most simple auto-exposure cameras is easy: press the shutter button and the camera does the rest.
   • Photographs were taken using a camera with auto-exposure facility.
   • This display shows that the camera is in auto-exposure mode and is shooting at 1/60 second!
   • There's no autofocus, no auto-exposure, no auto-film-winding, no auto-nothing.