N a fraction in which the numerator and denominator are both integers expressed as a ratio rather than a decimal 简分数 (Also called common fraction, vulgar fraction)
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。
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？
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.
使用标准cgi表单部件等组件的简单应用程序很容易编写，开发所需的时间比开发功能完备的应用程序要少得多。
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