从分数的分子和分母中去掉相同的因数，我们称为约分。
We call it reduction to remove the same factors from the terms of a fraction.
民意测试建立了成为激进分子易攻击对象的索引，这个索引里，分数低于67分的为高危险地。
The poll establishes an index of vulnerability-to-radicalisation, in which any score below 67 indicates high risk.
在此练习中您要将一个给定的数字转换成一个分数，输入转化结果的分子和分母。不要忘了将结果约分至最简分数。
In this exercise you have to convert a given number into a fraction by entering a numerator and denominator. Do not forget to reduce the result.
大气和工业污染中的其他气体分子的体积分数也可用类似方法测量。
The other gas molecule concentration such as atmosphere and industry pollution can also be measured in the similar way.
如果你真的想看到“0 333333333333333333333333333333”输出，您可以创建一个自定义的“分数”类的分子和分母分别存储。
If you REALLY want to see "0.333333333333333333333333333333" output, you could create a custom "Fraction" class which stores the numerator and denominator separately.
在此练习中您要将一个给定的数字转换成一个分数，输入转化结果的分子和分母。不要忘了将结果约分至最简分数！
In this exercise you have to convert a given number into a fraction by entering numerator and denominator. Do not forget to reduce the result!
本文研究了辐射条件对硫化硅橡胶的凝胶分数、交联规律和交联网格分子量的影响。
The effect of the radiation condition on the gel fraction, crosslinking regulation, and the network molecular weight were studied.
考察了其粘均相对分子质量、质量分数、温度及流态对减阻效率、抗剪切稳定性的影响；
The effects of PLMA′s relative molecular mass, content, temperature and flow state on the drag reduction effectiveness and the shear stability were discussed.
研究了PEG的相对分子质量、亲水链段的质量分数与抗静电剂效果之间的关系；
The effects of PEG relative molecular mass and hydrophilic segment content on the antistatic performance of the product were investigated.
采用凝胶纺丝工艺制备了具有不同质量分数的超高分子质量聚乙烯凝胶纤维，并对其进行了萃取干燥和后拉伸等处理。
Ultrahigh molecular weight polyethylene fibers(UHMWPE) of different gel concentration were prepared using gel spinning process followed by solvent extraction, drying and drawing.
当PEO分子量增加时，其水凝胶膜的凝胶分数、膨胀度和硬度亦明显增加。
When the PEO molecular weight increased, the gel fraction, the degree of swelling and the hardness of the PEO hydrogel films increased obviously as well.
多级多组分精馏过程的数学模型，通常都由物料平衡、能量平衡、相平衡和分子分数总和四个方程组来描述，即MESH方程组。
The mathematic model of multistage multi-component distillation is composed of material equation, heat equation, and equilibrium equation, namely MESH equation.
考察了聚合条件对共聚物数均分子量和醋酸乙酯(VA)质量分数的影响。
Effects of polymerization conditions on the copolymer molecular weight and VA weight content were studied.
随着固相体积分数的增加，单位面积的颗粒分布密度增大，网络高分子在成分中只占少量，坯体抗弯强度降低。
With the increase of solids loading, the particle density increases and the bending strength of green body decreases for the network polymer accounting for only a small amount of the composition.
结果表明：当纤维中分子筛质量分数为2%时，改性PET纤维的可纺性较好；
The results showed that the modified PET fiber had good spinnability when the molecular sieve content in fiber was 2% by mass fraction;
结果表明，胡敏酸各级分随级分数的增大芳构化度逐渐降低，分子结构趋于简单。
The resu lts showed that the condensation degree of the fractions decreased and the structure became simpler with the fractional number increase.
通过实验方法和分子动力学模拟方法研究了91%（质量分数，下同）细化颗粒钨合金材料的塑性力学问题。
Abstract :Based on the combination of experiments and numerical simulations, the plastic properties of a 91%(mass fraction, the same below) refined particle tungsten alloy were investigated.
通过实验方法和分子动力学模拟方法研究了91%（质量分数，下同）细化颗粒钨合金材料的塑性力学问题。
Abstract :Based on the combination of experiments and numerical simulations, the plastic properties of a 91%(mass fraction, the same below) refined particle tungsten alloy were investigated.
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