压电式耳机

60秒科学:用身体动作来充电电池植入的医疗设备

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

发表于:2018-12-07 / 阅读(175) / 评论(0)

60秒科学

SSS 2010-09-24

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

发表于:2018-12-24 / 阅读(118) / 评论(0)

Scientific American(九)月

Eztalk美语【31】new radio earphone 新的耳机收音机

Billy is humming loudly Jennifer: Shut up...Billy...BILLY! Billy: [Takes off his earphones] What! Jennifer: Wow! What's that? Billy: It's my new radio earphone. Jennifer: It's so small that I didn't notice it. Billy: What were you screaming at me for

发表于:2018-12-25 / 阅读(103) / 评论(0)

Eztalk美语会话

Eztalk美语【32】cool see-through blue 酷透明的蓝色

Jennifer: Oh. I just wanted you to shut up. You were off-key anyway. Let me see that! [Grabs the earphone] Billy: OK...just grab it right out of my hands... Jennifer: What a cool see-through blue! How do you wear this thing? Billy: That piece fits on

发表于:2018-12-25 / 阅读(87) / 评论(0)

Eztalk美语会话

旅游英语口语就该这么说:第66期乘飞机机上服务

May I put my overcoat up there in the overhead compartment? 我可以把大衣放进上面的置物箱吗？ Yes, but be sure to take it with you when leaving the aircraft. 可以，但下机时请不要忘记带走。 I would like a blanket. 我想要

发表于:2018-12-27 / 阅读(109) / 评论(0)

旅游英语口语就该这么说

可以录音和发声的衣服(有声)

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

发表于:2019-01-02 / 阅读(125) / 评论(0)

60秒科学

这句英语怎么说第180期:"耳机坏了"怎么说?

This headphone is not working. Can I have a new one? 这个耳机坏了，可以给我新的吗？ Headphone 头戴式耳机／或耳塞式 Earphone 耳塞式 Headset 泛指所有的耳机头戴／耳塞／蓝牙耳机都有可能 Bluetooth headset 蓝

发表于:2019-01-21 / 阅读(135) / 评论(0)

这句英语怎么说

十天学会简单英语第1课:从出发到出国(6)

Do you have Japanese sake? 你有日本酒吗？ Can you serve it hot? 你可以把它温一下吗？ May I buy you a drink? 我可以请你喝一杯吗？ How about a drink? 来一杯饮料如何？ I want to have some drinks. 我想喝点酒。 Don

发表于:2019-02-20 / 阅读(126) / 评论(0)

十天学会简单英语

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ABERCROMBIE AND FITCH

bicmos rf integrated circuits

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