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1·One forth is a proper fraction.

四分之一是一个真分数。

2·This article defined constant in numerator of simplest fraction by the way of resolve proper fraction to simplest fraction.

本文用分解真分式为最简分式的分解基本定理来确定最简分式分子里的常数。

3·The calculation of every fractions in Separating fraction and integral of rational proper fraction is reduced by the method.

从而大大简化了分式分项的计算，简化了有理真分式的积分运算。

4·The degree of difficulty in algorithms is gradually enhanced in proper order from dynamic programming to continue fraction algorithm.

算法的实现难易程度由动态规划算法到多项式算法依次提高。

5·Element approach is employed, and the amount of each component holdup is calculated element by element with a proper void fraction model.

将换热器分解成若干微元，选用恰当的空泡数学模型，计算各组分在换热器中的滞留量。

6·The proper fibre volume fraction of original is between 25% and 30%.

预制坯体的纤维体积含量选为25％至30％为最好。

7·The results show that a proper increase of residual gas fraction could promote ignition and combustion stability of first firing cycle significantly during cold start.

结果表明，通过调节排气门关闭正时，适当增大缸内残余废气量，可显著改善起动过程初始着火循环的着火燃烧性能和提高起动过程缸内燃烧的稳定性。

8·The many negative causes in the plant were analyzed such as the process and components in the fraction column, then given the proper solution.

对工艺流程和塔内部件等多方面原因进行分析，提出相应的对策。