单词：piezoelectric sound pressure sensor
单词：piezoelectric sound pressure sensor 相关文章
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
60秒科学
ork Pressure Work pressure refers to the compelling force or influence that comes from one's work. Nowadays with the competition in the work field becoming more and more fierce (激烈), work pressure has become a serious problem for every person. It
英语四级作文范文
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi
Scientific American(十二)月
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
Scientific American(九)月
One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
2017年Scientific American(二)月
The air thins and they begin to lose the protective weight of the miles of air above them. The pressure is dropping, when you finally get to the stratosphere, and to the altitude we like to work at, it's only one one hundredth that of it's on the gro
探索与发现2014年
On airplanes, cabin pressure changes during takeoff and landing to help passengers breathe easy at high altitudes. These changes in air pressure may make adults ears feel a little funny, prompting a few yawns to equalize the pressure. But for babies,
初学者听力文摘精选
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
60秒科学
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling
Scientific American(四)月
Israel is warning the United States and other countries not to pressure it into reaching what it says could be a premature Palestinian peace agreement. Israel's chief negotiator says too much pressure could result in another Palestinian uprising and
VOA标准英语2008年（八月）
Hearing Aid Common in Europe Turns Up Volume in US More than 10 percent of Americans have some form of hearing loss. Even with a hearing aid, deciphering sounds in places like airports, theaters and places of worship can be tough. However, a not-so-n
VOA标准英语2011年(十二月)
DAVID GREENE, HOST: Both President Trump and Vice President Mike Pence will go to Dallas on Friday for the NRA's annual convention. On one hand, the president's presence shows that the NRA has staying power. But the organization has also faced fresh
2018年NPR美国国家公共电台5月
Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分，这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色， a
TED演讲国际问题篇
HEALTH REPORT - Blood Pressure Drugs May Prevent Dry Eye Syndrome By Jerilyn Watson Broadcast: Wednesday, April 07, 2004 This is the VOA Special English Health Report. Many people around the world suf
健康与经济
The device is a tiny sensor, implanted through a catheter in the heart's pulmonary artery. The procedure takes just seven minutes. The patient passes a wand over his chest, collecting data on heart pressure. That data is sent electronically to the do
VOA标准英语2010年(六)月
By Bill Rodgers Washington 10 July 2007 President Bush is facing mounting pressure to change his Iraq policy as the U.S. Senate begins debate on military spending priorities. The pressure is not just coming from opposition Democrats, but from some se
2007年VOA标准英语（七月）
The Pike River Mine Commission is still listening to evidence about why 29 men died at the mine last November. Each day, we hear about things that were not right at the mine. There were money problems. The mine was losing money and the men were under
新西兰英语
今天我们要学的词是peer pressure。 Peer, 是同伴，同龄人；peer pressure, 就是来自同伴的压力。 Teenagers tend to give in to peer pressure, 青少年很容易受同龄人的影响。 Peer pressure plays a part in youth drinkin
英语单词荟萃
Snowflakes are small ice crystals. Snowflakes near the ir melting temperature can, through hand pressure, be made to fuse into a snowball by a process of melting and re-freezing. The snow yields to pressure gently and progressively and doesnt make so
英语时差8，16