This article described the DPTK expression language and demonstrated how it can be applied to create an effective way of accessing your data model.
本文介绍了DPTK表达式语言，并演示了如何使用它创建访问数据模型的有效方法。
So, no matter how you say it, this is always zero. So, in a way, this reinforces our intuition that del, even though it's not at all an actual vector sometimes can be manipulated in the same way.
因此，无论你怎么描述它，它总是0，那么在某种程度上，这加强了我们的直觉，即▽有时也可以用同样的方式计算,即使它并不是真正的向量。
If you're curious about how Android works and would like to try it out on a real machine, this is a great way to see how fast a mobile OS can be on a netbook or desktop.
如果你对Android很好奇，并想在电脑上尝试一下，那么这是一个见证移动操作系统运行在上网本或桌面电脑上的绝好方式。
The brain can be fooled this way because this is how it perceives depth when confronted with the real world rather than a flat screen.
大脑“被欺骗”的原因是那正是在遇到现实世界而不是平面屏幕时它感知深度的方式。
In this way there can be no denial of the truth, and your history can be rewritten according to how it actually took place.
以这种方式就无法拒绝真相，你们的历史就能够根据它确实发生的样子呈现出来。
Some pharmaceutical and biotech companies are asking how this can be done better. One way to do it is to make existing therapies — medicines that are known, tested and approved — even more effective.
一些制药公司和生物科技公司都想知道怎样才能加大投入产出比，而其中的一种方法就是让现有的药品，也就是那些已经经过测试和认证的知名药品，变得更加有效。
Some pharmaceutical and biotech companies are asking how this can be done better. One way to do it is to make existing therapies — medicines that are known, tested and approved — even more effective.
一些制药公司和生物科技公司都想知道怎样才能加大投入产出比，而其中的一种方法就是让现有的药品，也就是那些已经经过测试和认证的知名药品，变得更加有效。
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