Collimator
n. 准直仪\\n[化] 准直管; 平行光管
🏥 医学释义
准直器，平行光管
🗣️ 情景例句
I want to thank you for giving me an opportunity to speak to you.
我要感谢大家给我一个机会来向各位讲话。
We used to have a lot of interesting friends.
我们过去常有很多有趣的朋友。
For a long time.I watched them scurrying around the base of the tree in bewilderment.
在很长一段时间里，我看见蚂蚁围着大树底部来回转悠，不知所措。