So in general, we don't have a simple analytical expression for what the pressure is going to do as a function of mole fraction a ll the way from zero to one.
所以通常来说，我们不会有，一个简单的解析式，描述压强，作为摩尔分数从零到一，的函数的变化形式。
2
The concept is simple, why pay for an entire processor core when a well written website only needs a fraction of that power.
这个概念很简单，为什么一个编写得很好、只需要一部分处理器能力的站点需要为整个处理器核心支付费用呢？
3
Simple applications, using standard CGI form widgets and the like, can be written in a fraction of the time required for development of self-contained applications.