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A pickup is a device that captures the vibration of the metal guitar strings and changes them into electronic sound signals.
VOA: special.2009.09.27
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They're studying practical things like marble work, and metal work, and copper work, and not just shipbuilding.
他们学习一些实用的东西,比如大理石打磨,金属冶炼和铜器制造,并且不仅仅是造船术
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I used to listen to a lot of hip-hop music and heavy metal when I was younger.
我年轻的时候，我常常听一些嘻哈和重金属音乐。
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Workers stand outside stores, ringing a bell and collecting money in a red metal kettle from shoppers passing by.
VOA: special.2009.11.02
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Lastly, up here, is a picture of a much smaller device, this is actually an artificial heart valve that is made of plastics and metal and can replace the valve inside your heart.
最后,在上面这里,这张图片是一个相对较小的装置,这实际上是一个人工心脏瓣膜,由塑料和金属制成,可以取代人的心脏瓣膜
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The treadle pump is easy to build from bamboo or other wood and two metal cylinders with pistons.
VOA: special.2009.08.17
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It's magical.It's sorcery to take an ore and convert it to metal. It's magic. It still amazes me today.
非常神奇，采取矿石并将其转变为,金属非常神奇，我现在仍然很吃惊。
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The difference between the bright burning metal and the black factory walls was too extreme for her camera.
VOA: special.2009.05.10
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Go ahead and just pinch the metal plates and watch your eyes 'cause these do--things do have little springs.
挤压这些金属片,你会注意到没什么弹性。
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We slept on the hard ground, ate canned beans from cold metal plates and spent our days in the difficult search for gold.
VOA: special.2009.07.04
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And the answer, not that there aren't puzzles about it, but the answer is roughly, "It's the very same car if it's the very same hunk of metal and plastic and wires."
而答案，虽然还存在疑问，但答案大致上是，如果是同一堆铁，塑料，电线,就是同一辆车“
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Over the years, the group has made stoves using mud,bricks,sheet metal,clay, ceramics and old oil drums.
VOA: special.2010.02.01
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And often, if you want to make a lot of it, you have to think about the thermodynamics of the system, how fast the reactions will go and kinetics, and then whether they'll go, the thermodynamics, and sometimes then you need to adjust the reactions, maybe use a transition metal to make it go better.
这种分子就不能正常工作，而且通常来说,如果你要大量生产一个东西,你必须考虑系统的热力学，反应速率和动力学,还有反应是否会发生，热力学，而且有时候你需要调整反应的发生。
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Once again, he took off a metal band from his arm and gave it to me.
VOA: special.2010.07.31
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Yet, they wanted to get clean and so what device they used was to take oil, typically olive oil, spread it on themselves, then get a scrapper, a metal scrapper, and scrap off the oil with it what was underneath the oil.
当他们想要保持清洁时,他们所使用的东西就是油,通常是橄榄油,把橄榄油抹在身上,然后拿一个刮板,金属刮板,把污垢和油一起刮下来
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He slowly took off a metal band from his arm and held it out to me.
VOA: special.2010.07.17
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There were people goldsmiths were people who worked in the metal gold and made beautiful things for people jewelry and other things.
有人，比如金匠就是是,铸造金的形状,并且为人民铸造美丽的东西的一群人,包括珠宝和一些其它的东西。
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The artist can shape the hot glass using metal tools such as jacks, tweezers and shears.
VOA: special.2009.09.16
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and we are a black, Afro-American heavy metal group.
我们是一个由非裔美国黑人组成的重金属乐队。
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Severe breaks may require an operation to hold the bone together with metal plates and screws.
VOA: special.2009.02.04
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As Little Albert was playing with the rat, " "Oh, I like rats, oh," and banged the metal bar right here .
小阿尔伯特正在和老鼠玩耍，“噢，我喜欢老鼠“,重击那里的金属棒。
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This metal form is chemically treated before being covered with ink and then pressed onto paper.
VOA: special.2009.09.02
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Basically what he did is he took a very thin metal foil and he bombarded it with charged particles.
简单的说他做的工作是,用一张非常薄的金属箔,然后用带电的粒子轰击它。
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Or,he or she can place the hot glass on a metal table called a marver to shape the form by rolling it back and forth.
VOA: special.2009.09.16
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This device held here is really made of mainly plastic and a little bit of metal.
这个装置大部分是用塑料做的,还有一点金属
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I had my head in and was about to open the lantern, when my finger slid on a piece of metal and made a noise.
VOA: special.2009.05.16
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Mercury is a liquid metal, and mercury, the planet, is the fastest moving naked eye heavenly body. Mars, iron, why is Mars red?
水银是液态金属，水银，行星，是肉眼能看到的运动最快的天体,火星，铁，为什么火星是红色的？
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He got a metal shovel and hit the stone sides of the house so that the noise would warn the birds and animals of danger.
VOA: special.2010.03.20
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You start with liquid metal one, liquid metal two, you have the atom ratios proper, they mix, electron transfer occurs and poof, it is clear and colorless. Sorcery.
从液态金属一，液态金属二开始，你有合适的原子比例，混合它们，电子转移发生且被证实了，产物是透明无色的，有点辣味。
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that's one way to think about it, and there's also another way, and this is the way that your book presents it. If you, in fact, have two of the same atom right next to each other, let's say you have a crystal, or let's say you're talking about a metal, what you can do is just look at the distance between the two nuclei, and split that in 1/2, and take the atomic radius that way.
这只是一种定义的思路，另外还有其它方法，也就是你们课本上的方法，如果你，事实上，有两个相同的原子彼此靠在一起，比如说你有一个晶体，或者说你讨论的是一个金属，你所要做的就是,看看这两个原子核之间的距离，然后将距离除以二，就得到了这个原子的半径。
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