英语词汇“virtual focus”是什么意思，“virtual focus”的读音、用法及例句翻译-烛光网

词汇	virtual focus
释义	virtual focusn.（名词） The point from which divergent rays of reflected or refracted light seem to have emanated, as from the image of a point in a plane mirror.虚焦点：似乎发出分散的反射光线或折射光线的点，如同从平面镜的一像点发出一般
随便看	uplink upload upmanship upmarket upmost upo Upolu upon upped upper Upper Arlington upper atmosphere Upper Avon upper bound Upper California Upper Canada Upper Carboniferous uppercase uppercase upper chamber upper class upper classes upperclassman upperclassmen upper crust

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