Illumination efficiency
[电] 照明效率
🧩 词语组成解析
illumination
[iˌlju:mi'neiʃən]
n. 照明;阐明，解释清楚;<物>照度;彩饰，图案花饰;
🗣️ 情景例句
Thanks for your help! Keep the change.
多谢你帮忙， 不用找了。
I imagine it was part of a dinosaur.
我猜那是恐龙的一部分骨骼。
It's often cold in December, January and February.It snows sometimes.
12月、1月和2月常常很冷，有时还下雪。