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ratiometer
释义
WordReference Random House Unabridged Dictionary of American English © 2024
ra•ti•om•e•ter
(rā′shē om
′
i tər),
USA pronunciation
n.
Photography
(in three-color photography) a device for determining the exposure factors of the filters to be used.
ratio
+ -
meter
1920–25, for an earlier sense
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更新时间:2024/9/21 10:49:16