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听力等级

科学研究   

2021-11-11   Video
The Cochlea

Keywords:

So here we are with a view of the cochlea. The cochlea now uncoils, and we look at the basilar membrane, and now you'll see what happens when we play individual tones. Now a chord. And finally somethi...

所以我们现在看到的是耳蜗。耳蜗现在展开,我们观察基底膜,现在你会看到当我们演奏单个音调时会发生什么。现在是和弦。最后是一些非常复杂的东西。所以我不是在开玩笑,这真的是你耳边一直发生的事情,这真是太神奇了,不是吗?对于那些有数学倾向的人来说,...


2021-11-09   Intermediate
Research Aimed at Fighting Antibiotic Resistance

Keywords:

Steve: Hi, Gary, how are you? Stix: Good, Steve, how are you? Steve: Okay, give me the nickel tour of the work that you talk about in the article. Whose lab is it and what are they doing that's ...

Steve:嗨,Gary,你好吗? Stix:很好,Steve,你好吗? Steve:好的,请给我介绍一下你在文章中谈到的工作。这是谁的实验室,他们在做什么,这很有趣? Stix:领导这个实验室的研究人员,他的名字叫 Fl...


2021-11-09   Video
Asexual vs. Sexual Reproduction

Keywords:

We're going to do a head-to-head contest between asexual cloning and sexual reproduction. And I'm going to need-- perhaps you've been wondering what these fruits and vegetables are for up here ...

我们将 进行正面交锋 无性克隆之间 和有性繁殖。 我要 需要 - 也许你已经 一直想知道这些水果是什么 蔬菜是给这里的 在——你注意到这些了吗? 所以我需要四名志愿者。 我需要四名志愿者。 现在,我需要三个 女性和一...


2021-11-08   British English
Infantile Anaemia - Blood Simple

Keywords:

Science and Technology 【infantile anaemia】 Blood simple 【A small change in how babies are delivered might abolish infantile anaemia】 CHILDHOOD anaemia is a problem. Around the world, almost a quar...

科技 婴儿贫血 简单的输血 分娩方式的简单改变可能帮助消灭婴儿贫血 儿童贫血症是一个全球性的问题,将近四分之一的五岁以下儿童忍受着该病的折磨,使得我们无法忽视它。儿童身体和智力的发育,都会受到铁元素匮乏的影响,因为除...


2021-11-07   Intermediate
The GLOBE at Night Project

Keywords:

Steve: Captain Moore, I really appreciate you calling in. Moore: Oh, not a problem. Thanks for having me. Steve: It's our pleasure. Can you tell me, first of all, over the years it has been call...

史蒂夫:摩尔船长,我非常感谢您的来电。 Moore:哦,没问题。谢谢你邀请我。 Steve:这是我们的荣幸。你能告诉我吗,首先,这些年来它一直被称为炮弹冲击,然后是战斗疲劳,现在显然是战斗压力。您能定义一下战斗压力吗? M...


2021-11-05   Intermediate
Talk with Eric Kandel

Keywords:

Dr. Kandel, great to talk to you today. Kandel: Steve it's wonderful to talk to you. Steve: And I want you to begin with your background. You went from an interest in being a psychoanalyst to a ...

Kandel 博士,很高兴今天与您交谈。 Kandel:Steve,很高兴能和你交谈。 Steve:我希望你先从你的背景开始。你从对成为一名精神分析学家的兴趣变成了一名心灵分子生物学家——不是心灵,我们稍后会谈到这一点。我知道我...


2021-11-05   Video
The Discovery of Ribozymes

Keywords:

RNA is an informational molecule. If one would want a simple analogy for it, you might use the analogy of a video tape. It has a linear array of information, which by itself is typically thought of no...

RNA 是一种信息分子。如果有人想要一个简单的类比,你可以用录像带来类比。它有一个线性的信息阵列,通常认为它本身什么都不做,就像 VCR 磁带什么都不做,除非你有一台机器把它放进去,还有一个监视器来查看图像,但它是信息的仓库。这些信息位称为...


2021-11-03   Video
How a Pathogenic E. coli Infection Begins

Keywords:

So here's our bacterium here and behind it will be these long strands that are the bundle forming pillus. They're going to adhere to the microvilli, these wiener-like structures, this is what's on...

所以这是我们的细菌,在它后面是这些长链,它们是束 形成 pillus。 他们将粘附在微绒毛上,这些类似维纳的结构,这是 正常肠道表面有什么。 它来到这里,然后细菌导致这些 东西消失,然后开始依偎在表面。 它被锁定,然后是 要下来,它...


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