Binoculars

来自Big Physics

google

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late 19th century: plural of binocular.


Ety img binoculars.png

wiktionary

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Abbreviation of "binocular glass".


etymonline

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binoculars (n.)

1866; see binocular. Earlier binocle (1690s).

取自“https://www.bigphysics.org/index.php?title=Binoculars&oldid=25019”