shutter release button（快门按钮）是什么意思？音标发音+图解场景

快门按钮 /ˈʃʌtə ɹɪlˈiːs ˈbʌtən/ n

English: shutter release button · 快门按钮

释义：Button that controls the exposure through control of the focal plane shutter opening. cable shutter release

这个词出现在以下图解场景（1）