• So, if we kind of think about the numbers we would need, we would actually need a velocity that approached something that's about 10 to the negative 30 meters per second.

    所以如果我们稍微想想,我们需要的数值是多少我们需要一个,大约为10的负30次方米每秒的速度。

    麻省理工公开课 - 化学原理课程节选

  • And step four is going to have us figure out how many bonding electrons we have, so we have 16 minus 10, is going to be 6 bonding electrons.

    而第四步需要判断,我们多少个成键电子,那么我们有十六减十,也就是六个成键电子。

    麻省理工公开课 - 化学原理课程节选

  • It eventually outputs a ticket with the right amount, but my God, how many steps does it take for us to get there?

    最终它适当地输出了一张票,但是我的天,我们需要多少步骤才能得到?

    哈佛公开课 - 计算机科学课程节选

  • How much time does that take?

    需要耗费多少时间?我们说过了?

    麻省理工公开课 - 计算机科学及编程导论课程节选

  • So if we can figure out the binding energy, we can also figure out how much energy we have to put into our atom in order to a eject or ionize an electron.

    所以如果我们可以计算出结合能,我们也可以计算出,我们需要注入多少能量到原子中,去逐出或电离一个电子。

    麻省理工公开课 - 化学原理课程节选

  • Our step three is to figure out how many bonding electrons that we need, or excuse me, how many total electrons that we need to fill up our octets, so that's just going to be 4 times 8, which is 32.

    我们的第三步是判断,我们需要多少个成键电子,不好意思,是我们总共需要多少个电子,才能填满所有“八隅体“,那么这就应该是四乘上八,也就是三十二。

    麻省理工公开课 - 化学原理课程节选

  • And the thing I wanted point out is, we've got this global variable number of calls. Which is there not because Fibonacci needs it but just for pedagogical reasons, so that we can keep track of how much work this thing is doing.

    要指出的是我们已经,调用了几次这个全局变量,这不是因为斐波那契数列,需要调用它而只是,因为教学上的需要,以便我们可以知道,这个函数做了多少事情。

    麻省理工公开课 - 计算机科学及编程导论课程节选

  • So this means we can actually calculate this for any molecule that we've drawn the Lewis structure for, because we actually do need to draw the Lewis structure before we know, for example, how many of each of these we have, or at least go through the rules.

    这意味着我们可以将原来画过,路易斯结构的分子的形式电荷计算出来,因为我们其实在画出,路易斯结构之后才能知道,比如,这些量的值是多少,或者至少我们需要经过前面的那些步骤。

    麻省理工公开课 - 化学原理课程节选

  • No, instead we have to click other amount at bottom right there, when we have to input 4-0-0 in this screen 4-0-0 after consulting visually the little cheat sheet on the device itself it tells you in a very long chart how much one pass costs so we multiply and type in 4-0-0, we hit enter.

    不,然而我们必须点击,右下边的这个,当我们需要在这个屏幕上,输入0,通过咨询那个设备上小说明,它在一个很长的图表上,告诉你,每一站需要多少钱,我们加起来,输入了4-0-0,点击输入。

    哈佛公开课 - 计算机科学课程节选

  • And this is a very fast speed, of course, it's about 700 million miles per hour. So, one way to put that in perspective is to think about how long it takes for a light beam to get from earth to the moon. Does anyone have any guesses? Eight seconds, that sounds good.

    当然这是一个非常快的速度,它大约是每小时7亿英里,为了更形象化,我们,看看光从地球到月球,需要多少时间,你们猜猜是多少?,8秒,猜的不错。

    麻省理工公开课 - 化学原理课程节选

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