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

field glass

/ˈfiːld ɡlɑːs/ /ˈfiːld ɡlas/

noun

Originally: a small telescope for use outdoors (now historical ). Later: (in plural and less commonly singular) a hand-held optical instrument for viewing distant objects outdoors and having a lens for each eye, so as to give a stereoscopic view; a pair of binoculars.

Binocular opera glasses using mirrors (Galilean optics) were devised in the early 19th cent. The use of prisms was first proposed 1854 and they were developed commercially by the firm of Zeiss in the 1890s..

Origin

Late 18th century. From field + glass.

单词	field glass
释义	field glass /ˈfiːld ɡlɑːs/ /ˈfiːld ɡlas/ noun Originally: a small telescope for use outdoors (now historical ). Later: (in plural and less commonly singular) a hand-held optical instrument for viewing distant objects outdoors and having a lens for each eye, so as to give a stereoscopic view; a pair of binoculars. Binocular opera glasses using mirrors (Galilean optics) were devised in the early 19th cent. The use of prisms was first proposed 1854 and they were developed commercially by the firm of Zeiss in the 1890s.. Origin Late 18th century. From field + glass.
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