| 单词 | 光量 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔bracket〕Bracketing exposures isn't difficult with this camera.这台相机不难进行包围曝光以确定曝光量。外研社新世纪〔diaphragm〕A disk having a fixed or variable opening used to restrict the amount of light traversing a lens or optical system.光圈：具有固定或可变孔的圆盘，用来限制穿过透镜或光学系统的光量美国传统〔exposure〕Against a deep blue sky or dark storm-clouds, you may need to reduce the exposure.拍摄背景为湛蓝的天空或者乌黑的暴风云时, 可能需要减少曝光量。外研社新世纪〔exposure〕Against a deep blue sky or dark storm-clouds, you may need to reduce the exposure.拍摄背景为湛蓝的天空或者乌黑的暴风云时，可能需要减少曝光量。柯林斯高阶〔exposure〕The amount of radiant energy needed to expose a photographic film.曝光量：感光胶片上曝光所需的辐射能的总量美国传统〔iris diaphragm〕A circular device with a variable diameter, commonly used on cameras to regulate the amount of light admitted to a lens.虹彩光圈：直径可变的一种圆形装置，通常用在照像中调节进到镜头上的光量美国传统 |
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