在对光阀的光透射比和遮光号进行研究的基础上，提出了对响应特性中响应时间和保持时间的精确定义。
On the basis of the analysis and research about luminous transmittance and the scale number of the filter, this article proposes a solution to the specific definition of the response and holding time.
当被观测行星从恒星前经过时，CoRoT号就观察来自恒星的光的细微减少，这种现象在天文术语中叫做过境。
It does so by watching for small diminutions in the amount of light from a star as the planet in question passes in front of it, a phenomenon known technically as a transit.
光5月23号就上涨了2.2%，这是自2月11号以来的最高涨幅。
The 2.2 percent rise on May 23 was the biggest since Feb. 11.
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