单词 | divergent rays |
例句 | DEFINITIVE EXAMPLES 权威例句〔virtual focus〕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美国传统 |
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