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单词 θ64969
释义
the world > physical sensation > sight and vision > optical instruments > mirror > [noun] > burning mirror (5)
alchemusie1585

A notional mirror for gathering or collecting sunlight.

burning-glass1675

A concave mirror, by the use of which the same effect may be produced.

burning mirror1728

a concave mirror used to set fire to an object by concentrating the reflected rays of the sun on to it.

burning-speculum1857

Subcategories:

— sun furnace (1)
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更新时间:2024/11/11 0:35:16