the luminance of [sth]
The luminance of the screen is adjustable.
屏幕的亮度是可调节的。
亮度
发光的性质；通过、发射或反射自特定区域并落在给定立体角内的光量；给定方向上的发光通量除以该方向垂直投影面积与包含该方向的立体角之积(即单位面积发光强度),单位为熙提或阿波熙提；亮度；[计] 亮度
the quality of being luminous; emitting or reflecting light
发光的性质
The quality of being luminous.
通过、发射或反射自特定区域并落在给定立体角内的光量
The amount of light that passes through, is emitted, or is reflected from a particular area, and falls within a given solid angle.
给定方向上的发光通量除以该方向垂直投影面积与包含该方向的立体角之积(即单位面积发光强度),单位为熙提或阿波熙提
The luminous flux emitted in a given direction divided by the product of the projected area of the source element perpendicular to the direction and the solid angle containing that direction (i.e. luminous intensity divided by unit area), measured in stilbs or apostilbs.
The luminance of this computer screen can be adjusted to reduce eye strain.
这个电脑屏幕的亮度可以调节，以减少眼睛疲劳。
用法提示：名词luminance在此表示屏幕的明亮程度。
Photographers often measure the luminance of a scene to set the correct exposure.
摄影师经常测量场景的亮度来设定正确的曝光。
用法提示：名词luminance在此指场景的光线强度。
High luminance in the room makes it easier to read small print.
房间亮度高时，更容易阅读小字。
用法提示：名词luminance指环境的明亮水平。
The luminance of the screen is adjustable.
屏幕的亮度是可调节的。
High luminance can cause eye strain.
高亮度会导致眼睛疲劳。
The luminance level is too low for reading.
亮度水平太低，不适合阅读。
grammar · medium
易错句子The luminance light is bright.
正确表达The luminous light is bright.
luminance 是名词，意为'亮度'，不能直接修饰名词。应使用其形容词形式 luminous。
grammar · medium
易错句子The luminance on the surface is 100 lux.
正确表达The illuminance on the surface is 100 lux.
luminance 指从表面发出的亮度，而illuminance指入射到表面的照度。在光度学中两者不同。
luminance 指物体表面发出的亮度，而 illuminance 指照射到物体表面的光照强度。
luminance 是反射或发出的光亮度，而 luminescence 特指不发热的冷光发射。
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