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You can't just start mass producing these drugs without paying a licensing fee."
你们不能就这样大规模生产,却不付任何专利费“
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We don't say anything about implicitly here, we're talking about a closed system, so there's no mass leaving the system.
我们不讨论,这是隐含条件，因为我们讨论的是孤立系统，因此系统没有物质流失。
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I mean they take up a teeny bit but essentially when we're thinking about the set up of the atom, we don't have to account for them as using up a lot of the mass we're discussing.
所以我们可以假设电子没有质量,它们占据了，非常小的一部分,所以当我们考虑,原子的构造的时候,不用考虑它们的质量。
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And I have purposely made the arrow shorter to indicate that it has been slowed because we are going to argue its mass didn't change, so the only way to change its energy is to change its velocity.
我已经故意将这个箭头弄短,用来象征它变慢了,因为我们将证明它的质量没有变，只有它的能量改变了,也就是它的速度变了。
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Some people would say, Well, there's still a part of our church, there's still a part of our Mass, there's still a part of our synagogue, we don't have to hire someone who doesn't agree with our principles.
一些人会说，我们仍保留着部分教堂生活，仍然保留着部分弥撒活动，仍保留着部分犹太教会堂，我们不必雇佣一个,不赞同我们原则的人。
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So you are saying that Nicola can go back into the state of nature if she wants to but she can't drive on Mass. Ave.?
你是说,只要妮可拉愿意，她可以回到自然状态,但她从此不能在麻省的路上开车了？
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They invented the paper machine so they could mass-produce paper-- it didn't have to be handmade anymore-- and they invented wood pulp paper so it didn't have to be made out of cloth anymore.
于是人们发明了造纸机从而可以大量生产纸-,而不再需要手工制作-,后来人们还发明了木浆纸,所以后来不再用布料来制纸。
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But we don't know the mass, right?
但我们还不知道质量,对吧
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I didn't even need to know that heat capacity of the product, right. Because it's effect the thermal mass of the product is negligible compared to the thermal mass of the calorimeter.
我甚至不需要知道生成物的,热容是多少，因为生成物的,热质量的作用相比于,量热计的热质量是可以忽略的。
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The idea of working in an office, pushing papers 70 to 80 hours a week, although as lucrative as it might be, wasn't something I felt I will be really using my own personal skill set to benefit people on a mass level.
在办公室里一周做，70到80小时的琐碎工作，虽然会很赚钱，但是这并不是,我能真正用自己的能力,去造福大众的工作。
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And we don't put the mass of the electrons because they are so light in comparison.
我们不能得到电子的质量,因为它们相较起来太轻了。
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We figured out the mass is so tiny that it shouldn't really deflect them very much.
电子的质量这么小,对它基本不会产生影响。
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That is why we don't worry about the motion of the nucleus 1 because the ratio of mass is about 2,000 to one.
这就解释了为什么我们不担心,原子核运动起来,因为原子核和电子的质量比约为2000：
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What I am going to do next day is go into the larger stoichiometry and understand the principles of mass balance and reactivity But before you go,hold it,I don't want you racing off.
下堂课我要做的是,讨论化学计量学，和,质量平衡很反应定律,但在下课之前，我不希望你们这么快走。
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You cannot say to me, "Take a force, due to a spring, and see what force it applies and divide by the acceleration and get the mass, " because we haven't defined force, either.
你不能说,"给弹簧施加一个力,看看它能提供多大的力,然后除以加速度,得到质量",因为我们还没给力下一个定义
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