unit fraction

基本解释

In Egypt, so called unit fraction was in use in the times of the pharaohs.
埃及法老时期用所谓单位分数。
The fraction indicates the unit of measurement, while the time figure indicates the maximum time measurement.
该部分显示的度量单位，而当时的数字显示测量的最大时间。
It was analyzed and discussed the influence factors of the butadiene extractive distillation column in the unit of extract butadiene from C4 fraction. And point out the design cruces of this column.
对C4 抽提丁二烯装置中丁二烯萃取精馏塔的影响因素进行了分析和讨论，并提出了其设计要点。

Contracts are won and lost on a fraction of a cent per unit.
ECONOMIST: How a boring gadget saved $2 billion-worth of electricity
At even a fraction of a penny profit per unit, it looks like a very successful venture.
FORBES: Size Isn't Everything When Assessing Impact
The departure of Lawson is especially intriguing, because he took over as head of aeronautics only 12 months ago, and he is leaving to lead a second-tier company that has a fraction of the sales his Lockheed unit did.
FORBES: Move up http://i.forbesimg.com t Move down