Conclusion STR multiplex examination is an ideal method to study the genotype of each component and their combination ratio in a mixed biological sample with certain composed proportion.

结论应用荧光标记STR多基因座联合检测技术可以对一定比例的混合生物样品进行STR基因型判定，并对其混合比例状况进行大致推断。

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The quality of hot-mixed bituminous mixture affects directly the quality of pavement constructed. Therefore, the quality control and examination of it must be strengthened.

热拌沥青混合料的质量直接影响到所铺筑路面的质量，因此必须加强对热拌沥青混合料质量的控制与检测。

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Eight questions were selected from each decade, and were mixed up in the examination paper, so that students could not easily tell which decade they came from.

BBC: Past science papers stump pupils