“field flattener”的概念、定义、翻译、参考文献-科学参考

单词	field flattener
释义	field flattener [`fēld ´flat·ǝn·ǝr] ^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	swinger swing-frame grinder swing-hammer crusher swinging swinging a claim swinging buoy swinging choke swinging compass swinging load swinging reactor swinging ship swinging the arc swinging traverse swing joint swing pipe swing shift swing-wing aircraft swirl error swirl flowmeter Swiss pattern file switch switch angle switchback switchblade knife switchboard

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