英语词汇“ramsden circle”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	ramsden circle
释义	Ramsden circle Ramsden circle [′ramz·dən ‚sər·kəl] (optics) A sharp, bright circle of light which appears on a sheet of white paper held near the eyepiece of a telescope focused for infinity and pointed at a bright sky. Also known as Ramsden disk.
随便看	steam rollers steamrollers steam room steams steams across steams beam steam separation steam separator steams her beam steams her off steams her up steams him off steams him up steam ship steamship steamship company steamship line steam ships steamships steams his beam steam shovel steam-shovel steam shovels steams in steams into

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Ramsden circle