Light meter: An electrical exposure meter for measuring light intensity.
测光表:用来测量光强度的一种电子曝光表。
The linearity and chromaticity accuracy are important properties of a spectroradiometer for measuring light sources.
线性度与色座标测量精度是光源分光测色仪器的主要技术指标。
The Pioneer probes have on board ultra -violet instruments which are measuring light that we can't measure on the earth.
“先驱者号”太空探测器上装有紫外线仪器,能够对在地球上探测不到的光进行测量。
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