specula

['spekjulə]

n. 金属镜(镜齐, 窥镜)

例句与用法:

A device for converting electromagnetic radiation in the infra-red, visible and/or ultra-violet regions of the spectrum into an electric current.

一种把下述光谱范围内的电磁辐射转换成电流的装置:红外线、可见光和/或紫外线。

In the spectrum, distinct colours shade into each other.

在光谱中,截然不同的颜色相互融合起来。

Red and violet are at opposite ends of the spectrum.

红色和紫色位于光谱相对的两端。

There's a wide spectrum of opinions on this problem.

对这个问题的说法众说纷纭,莫衷一是。

词形变化:

名词复数: spectra |