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- The smallest unit that supports electron flow in a semiconductor material ; a hole in P-type silicon or a free electron in N-type silicon. 在半导体材料中维持电流的最小单元,在P型硅中是空穴,在N型硅中是自由电子。
- Jon sent away for a free almanac. 乔写信去要一份免费赠阅的年历。
- A free flow of water came from the pipe. 水从管道里通畅地流了出来。
- He is given a free ticket to the exhibition. 有人给他一张免费参观展览的票。
- He was inclined to give them a free hand. 他倾向于放手让他们干。
- We'll eat at whichever restaurant has a free table. 哪个饭馆有空桌我们就在哪儿吃吧。
- The referee awarded a free kick. 裁判员判定罚一个任意球。
- free expansion; free oxygen; a free electron. 自由膨胀;游离氧;自由电子。
- After ten years in prison, he was a free man again. 他坐了十年监狱,又成了自由人。
- He has an empty purse, but a free heart. 他身上没有钱,但心里无忧无虑。
- After ten years in prison, he is a free man again. 他坐了十年监狱,又成了自由人。
- A free press is one of the bastions of a democracy. 自由的新闻业是民主的壁垒之一
- She seized on the offer of a free trip. 她紧紧把握这次免费旅行的机会。
- The tackle looked fair but a free kick was awarded. 阻截动作看上去并未犯规,但被判罚任意球。
- This is a free country I can say what I like. 这是个自由的国家--我爱说什麽就可以说什麽。
- The teacher had a free hand in his class. 教师在课堂上可以全权处理一切。
- I missed out on his offer on a free holiday in Spain. 我失掉了他提供的免费在西班牙度假的机会。
- Has a great many free electrons. 铜底板是良导体,它有大量的自由电子。
- Experiment of a Novel Smith-Purcell Free Electron Laser[J]. 引用该论文 陈嘉钰;梁正;张永川;杨梓强.
- Anyone who buys this breakfast food gets a free gift of a fine greeting card. 购买这份早餐食物的人都可得到一张免费的精美贺卡。