单词:piezoelectric loudspeaker
单词:piezoelectric loudspeaker 相关文章
Passage 26 Travel for Work You can see them in every airport in the world. They are businessmen and women who have to travel for their work. When they first applied for the job, they may have thought of good food and hotels, huge expense accounts an
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最新研制一种新的医疗设备,可以利用身体动作来充电。 Novel materials could allow the implantation of flexible, rechargeable batteries that would constantly recharge from the body's own movements--even just breathing. Cynthia Gr
UNIT 13 Train Schedule Integrated Skills Development Dialogues A. When Does the Train Leave? Brenda is going to Shenyang for a get-together with her friend. She is now asking a ticket agent for inform
Say Wilbur, get a load of this story. If you grew up in the '60s, you probably recognize the voice of Mr. Ed, TVs talking horse. And it turns out, he might recognize your voice, too. A new study shows that even non-talking horses can tell individual
This is Scientific Americans 60 Science, Im Cynthia Graber. Thisll just take a minute. Batteries add weight, and they need recharging. Thats serious business for implanted medical devices. When the batteries die, patients sometimes have to undergo an
Chapter 30 Time to Close Shop第30章商店该打烊了David : Do department stores like this usually close at 9:30 ? 这样的百货商店通常是 9:30 关门吗? You: Yup. 是的。 David : But the workers have to stay afterwards? 但是员
Fatima: It's a beautiful day but so hot! Navid: It will be cooler on the water. Fatima: Yes, I can feel the breeze now. This was a lovely idea. Navid: I'm so glad you like boats. Fatima: I've never been on a boat like this before. How far is it to th
M.I.T. researchers have developed a piezoelectric fiber that would react to electric currents and have the potential to record or produce audio. Clothing is so yesterday. I mean, really, what can it do? It cant pick up sound, or beep at us if somethi
In todays podcast, I am going to talk about the English word mind, and about some expressions which contain the word mind. Your mind means the things which happen inside your head, or inside your brain your thinking, in other words. We can say, for e
讲解 Todays key word is Barbeque. At a Barbeque Night Market, there's a loudspeaker fight between the venders and residents living in the neighborhood. The residents part says: The government should do something to stop the market!Say no to the gar