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
It's great. Although the economy is pretty slow as usual, it's picking up.
很好。虽然经济发展照常地缓慢，不过已开始回升。
One cannot make bricks without straw.
巧妇难为无米之炊。
May I borrow it, please?
我可以借用一下吗？