Thermionic vacuum tube
热离子真空管
🧩 词语组成解析
a. 热离子的\\n[电] 热离
🗣️ 情景例句
Life has its ups and downs, but it certainly has its rewards.
人生有沉也有浮，但是无论怎样都确有其价值。
Our factory would have no problem in turning out the 2000 units you asked for in your inquiry.
我们工厂完全可以生产出你方询价单中要求的2000件货品。
There were six million visitors in all,
参观的人数总共是600万。