Apertometer
数值孔径计, 数值口径计, 物镜口径计, 开角机
🔁 扩展释义
【医】 物镜口径计
🗣️ 情景例句
Well, Harry, that's because I do.
哦，Harry， 那是因为我关心。
How often did I tell you to keep quiet?
我告诉你多少次要安静?
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）