The real hard work in writing a parallel program is to make N as large as possible.
在编写并行程序时真正困难的事情是使 N 尽量大。
N-tier development is a reality in the business world today - application patterns such as those in Silverlight and Ajax make n-tier mainstream.
N - Tier开发是当今商业社会的现实需求——如Silverlight和Ajax这样的应用模式使得N - Tier成为当前的主流。
First you make the shape for the letter "f", then the shape for the letter "u", and then the shape for the letter "n".
你首先要做出字母“f”的形状,之后是字母“u”的形状,然后是字母“n”的形状。
In the Mexican state of Michoacn potters make white clay containers painted with line drawings of fish and other animals.
VOA: special.2009.09.09
So if you're trying to make a more complicated organic molecule carbon-carbon bonds are one of the most difficult things to make in organic chemistry, and it turns out that c n minus is a very reactive molecule, so it's a good way, even though we'll go over some drawbacks in a second, it is a good way to make carbon-carbon bonds.
如果你要合成一个更复杂的有机分子,碳碳键是有机化学中,最难制造的键之一,而实际上氰离子是一种具有很高活性的分子,用它是一个好办法,尽管我们一会儿将看到它的一些缺点,但它的确是一个制造碳碳键的好方法。
So, in terms of finishing our Lewis structure, we're actually not done yet here, even though we have full octets, and we've used up all of our valence electrons, and the reason is because it's c n minus, so we need to make sure that that's reflected in our Lewis structure, so let's put it in brackets here, and put a minus 1.
那么,根据我们的路易斯结构的完成情况,我们实际上还没有全部完成,尽管我们有了填满的“八隅体“,而且用完了所有的价电子,原因就是因为这是一个负离子,我们需要确保我们的路易斯结构能反映出这一点,所以让我们给它加个括号,再加个负一。
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