铌酸盐非金属纤维加固陶瓷

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(82) / 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(34) / 评论(0)

Scientific American(九)月

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(52) / 评论(0)

60秒科学

邀请函参考范文

邀请函参考范文 LETTER OF INVITATION Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. Were one of the manufacturers specialize

发表于:2019-01-21 / 阅读(76) / 评论(0)

实用英语

广交会英文邀请函参考范文

Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. 广交会英文邀请函范文 Were one of the manufacturers specialized in sanitar

发表于:2019-02-02 / 阅读(62) / 评论(0)

实用英语

2012年广交会邀请函英文

LETTER OF INVITATION Dear Sirs/Madam: We hereby sincerely invite you and your company representatives to visit our booth at The Continental Exhibition Center from April 15th to 20th 2006. Were one of the manufacturers specialized in sanitaryware, con

发表于:2019-02-11 / 阅读(59) / 评论(0)

实用英语

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学英语单词

asymptotically weakly ancillary

audience participation

ball-and-race type pulverizer mill

bit-identify

block automatic system

blowdown flash tank