双语例句
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Integration time is important to error of photometrical results in CCD photometric and observation.
CCD测光观测中积分时间的选取，对测光结果的误差大小有很大影响。
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The structure and the optical functions of porous anodic films were studied by XRD, SEM and spectro-photometrical means.
采用X射线衍射、扫描电镜(sem)和光谱分析等测试技术，研究了多孔氧化铝介质膜的组成、结构以及光功能特性。