So if we work out the chemical potential, it's just one over N times A.

如果我们计算出化学势，它就是N分之一乘以A

youdao

So instead of being equal to negative z squared, now we're equal to negative z effective squared times r h all over n squared.

这里不再等于-z的平方，现在我们等于-有效的z的平方,乘以RH除以n的平方。

youdao

Good, because the point I was going to make is that the sound of rock 'n' roll changed over the years.

这很好，因为我想说的是，摇滚的声音自近些年来已经改变了。

youdao

President Barack Obama has said that the United States will not "wait indefinitely" for a response from Iran over the U.N.draft nuclear deal.

VOA: standard.2009.12.18

One over two squared minus one over n squared 3 4 5 where n takes values three, four, five, six.

除以，2，的平方再减去1除以n的平方,将n赋值为。

麻省理工公开课 - 固态化学导论课程节选

So instead of being equal to negative z squared, now we're equal to negative z effective squared times r h all over n squared.

这里不再等于-z的平方，现在我们等于-有效的z的平方,乘以RH除以n的平方。

麻省理工公开课 - 化学原理课程节选

In fact, some of the rebel factions, there are three rebel factions that fought in N'Djamena over the weekend - N'Djamena, the capital of Chad.

NPR: Chad Conflict Stirs Global Response

Center is winning over Brooklyn, N.

WSJ: Zaha Hadid, Farshid Moussavi, Louis Kahn and the Best of 2012 in Architecture

In 1971, Austrian Kurt Waldheim took over as U.N. secretary-general after U That retired.

CNN: Tuesday,