Collimator tube
[建] 准直管, 平行光管
🧩 词语组成解析
n. 准直仪\\n[化] 准直管; 平行光管
🗣️ 情景例句
visiting places of revolutionary interest, outings, parties.
参观革命圣地，出去郊游，或者举办晚会。
No man (or one) is born wise or learned.
人非生而知之者。
We can get by.
我们过得去。