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单词 rim lighting
释义

rim lighting

noun
(Originally) the placing of a light source behind the dial of an instrument in an aircraft cockpit in such a way that light emerges around the rim, thus enabling the instrument to be read at night; (later chiefly Photography and Film ) backlighting used to create the appearance of a halo of light in a similar way.

Origin

1930s; earliest use found in Aircraft Year Book.

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更新时间:2024/12/23 15:08:24