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单词
ratiometer
释义
ra·ti·om·e·ter
\ˌrāshēˈäməd.ə(r)\
noun
Etymology:
ratio + -meter
:
a device for making a succession of photographic exposures to obtain the filter ratios of color-sensitive materials under given conditions of work
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更新时间:2025/7/27 3:48:34