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But, the reaction says I need twice as much mag as tickle if this reaction is going to go to completion.
但是这个反应告诉我们,镁的量应该是四氯化钛的两倍,如果要反应完全的话。
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Two moles of mag consume one mole of tickle, giving us one mole of Ti, and that's 515 moles of tickle consumed.
两摩尔的镁消耗一摩尔的四氯化钛，得到一摩尔钛，也就是说需要消耗掉515摩尔的四氯化钛。
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This was a failure because people could not go near the tickle machine without convulsing in laughter.
这是一个失败的发明,因为人们还没靠近挠痒痒的机器,就已经被它的模样逗笑了
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But we will discuss when we have a lecture on laughter a bit of the tickle sciences.
我们会在讲到关于笑的课程时,再来讨论这个关于挠痒痒的科学
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When monkeys get together to kill and eat somebody they make a kind of a laughing noise and chimpanzees laugh when they tickle each other.
猴子一起猎杀其他动物时,它们会发生出一种笑声,黑猩猩胳肢时也会笑。
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Final question for anybody interested in laughter is, "Why can't we tickle ourselves?"
对笑感兴趣的同学，最后一个问题，“为什么我们不能胳肢自己？”
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And I don't-- and they seemed sincere but if people say, "I can tickle myself," how many people here will own up to being able to tickle themselves?
我不…,他们说得很真诚，但如果有人说，“我可以胳肢自己”,有多少人承认自己可以,胳肢自己？
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So, when you tickle somebody, under what circumstances will they laugh?
在什么情况下,你挠别人痒痒,他们会发笑
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Where do you have to tickle them? Can you tickle yourself?
要挠哪里才行,你挠自己会感到痒吗
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OK, so let's say some young engineer is on the job the first day and says, OK, let's put in 200 kg of tickle, and let's put in about 25 kg of mag.
比如一些年轻的工程师,刚来上班时会说，投入200kg的四氯化钛，投入25kg的镁。
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It's tickle. This is mag.
而是tickle，这是镁。
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And in fact, an example of a methodological attempt was done by Henry Gleitman at University of Pennsylvania, who built a tickle machine, which was this box with these two giant hands that went "r-r-r-r."
实际上,宾夕法尼亚大学的亨利·葛雷曼,曾经进行过研究方法上的尝试,他发明了一台挠痒痒的机器,这是一个装有两只大手的箱子,双手会不停的去挠痒痒
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