noun 下载 🔗分享 光照度,照度. The luminous flux incident on unit area of a surface; measured in lux or lumens. Examples : "The illuminance on the desk was too low, making it difficult to read. " 书桌上的光照度太低了,导致很难阅读。 physics energy technology 与AI对话词汇游戏阅读练习