And they say it can double or triple crop production.
VOA: special.2009.09.01
Some people are going and in this course we would know whether you're hearing duple or triple based on some other information so don't worry about if you're doing .
小部分人是,在本课程中我们会知道,你们是否可以根据其他的信息,辨认出这是三拍子或者二拍子,所以也不要担心,哪怕你这样做了
or you can get a triple-triple, which is three meat patties and three slices of cheese.
或者你可以要个“三三”汉堡,里面有三块肉饼和三片奶酪。
So is this in duple meter or triple meter?
那么,这是二拍子的还是三拍子的
Well, I guess it's the problem that people who teach the eighteenth-century novel always have, or the Victorian novel: the Victorian novel like the triple-decker, the three-volume novel.
好吧,我猜这个问题是,讲授十八世纪小说,或维多利亚时期小说的人经常遇到的:,像维多利亚时期的三层小说,三卷本小说。
So the partial pressure or the pressure by which you have this triple point, happens to be 6.1 times 10 to the minus 3 bar.
而要小得多,事实上,水的三相点时的压强是6。1毫巴。
N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.
任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点,因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况,包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。
This would be? Well let's think through this in one additional way and that is--notice that in duple meter we have a strong beat, right "Strong, weak, strong, weak, strong, weak, strong weak" in that sense or if we have triple it would be "Strong, weak, weak, strong, weak, weak."
是什么呢,我们用另一种方式来想,这个,你们知道二拍子,有很强的鼓点,对吧,强,弱,强,弱,强,弱,强,弱,那在这种情况下如果我们拿一段三拍子,那就会是,强,弱,弱,强,弱,弱
And something that we'll see later on is that triple bonds, for example, are going to be stronger than a corresponding double bond or a corresponding single bond.
而我们以后还会看到三键,举例来说,应该更强,相较于相应的双键,或者相应的单键来说。
Is a hydrogen bond shorter, or is a nitrogen-nitrogen triple bond going to be shorter?
是氢的键更短,还是氮与氮的三键更短?
应用推荐