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Those are the familiar and empirical objects that we can see, pieces of paper, bodies, pieces of chalk, bars of metal.
那就是我们能看见的,熟悉的已知的物体，纸，身体，粉笔，金属棒。
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because of the sound of metal against metal.
因为这是金属撞击金属的声音。
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But their shields are made of wicker and they don't have that kind of metal body armor and all that stuff.
而他们的盾是用藤条做的,同时他们也没有金属装甲和其他护具
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And what he found here, which is what you can see and we can all see pretty clearly, is the slope of all of these lines is the same regardless of what the type of metal is.
他在这发现，你们也,可以很清楚的看到，不同金属直线的,斜率是相同的。
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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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That's like bocce. We have this sort of metal ball.
有点像室外地滚球 用这样的金属球
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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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I could make this out of metal.
可以用金属。
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The magnet creates a field which changes the polarity of a tiny, tiny portion of the metal particles which coat each platter's surface.
这个磁体创建一个,能改变覆盖在,磁盘表面小金属粒子的磁极。
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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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So, the active part of the thermometer could be water. It could be alcohol, mercury, it could be a piece of metal.
那么温度计的工作部分,可以是水可以是酒精，水银，可以是一块金属。
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Turn it into a heap of metal.
把车子拆成一堆废铁。
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So, you might ask then well what is the significance of shooting different amounts of photons at a metal?
所以，你们可能会问向,金属发射不同数量的光子,有什么重要性？
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Is there any significance at all, for example, in the number of photons that are hitting the metal or being absorbed by the metal.
举例来说，若干个光子撞击金属,或者被金属吸收究竟是否有意义。
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But at the end of the day, if you move this metal thing aside with your fingers, don't squeeze it too hard.
但是在下课后，如果你用手指触碰这个金属块，不要用力过猛。
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Some of the signals control a motor which spins metal-coded platters.
一些信号控制一个用于,金属编码磁盘的旋转。
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