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
How about guests?
来宾呢？
May I have the check,please?
我可以检查一下,好吗？
The train arrived on time.
火车准时到达。