Klystrons
(klystron 的复数) n. 调速管\\n[化] 速调管
🗣️ 情景例句
I had a wonderful being with you.
和你们在一起，我度过了美好的时光。
He wants to change his appointment from Monday to Wednesday.
他想要把他的约会从星期一改到星期三。
One, for instance, consisted of rods of various lengths and thicknesses which would stand up on end like ninepins.
例如，有一种装置是由一些长短、粗细不同的木棒组成；就像九柱戏的木棒一样竖立着，