英语词汇“field flattener”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	field flattener
释义	field flattener field flattener [′fēld ‚flat·ən·ər] (optics) A thin planoconvex lens placed in front of the photographic plate in some telescopes that have a curved focal plane so as to focus light on the flat plate.
随便看	nondiscretionary competition policy non-discretionary proposal nondiscretionary proposal non-discretionary proposals nondiscretionary proposals non-discretionary trust nondiscretionary trust non-discretionary trusts nondiscretionary trusts nondiscriminating non-discrimination nondiscrimination non-discrimination rule nondiscrimination rule non-discrimination rules nondiscrimination rules non discriminative key non-discriminatory non-discriminatory trade policy nondiscursive nondisease non-disjunction nondisjunction nondisjunctional nondisjunction, genetic

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