如以年龄做匹配因素，在分析比较两组资料时，可免除由于两组年龄构成的差别对于疾病和因素的影响，从而更正确地说明所研究因素与疾病的关系。
Ceramic with zero temperature coefficient could be obtained at suitable ratio.
适合的配比可得到零温度系数的复相BZN组分。
参考来源 - BiAlso research the effect of proportion of coal and coke, stabilizer, temperature to slurryability of coalcoke slurry.
实验还研究了煤焦配比、稳定剂、温度等对水煤焦浆的成浆性能的影响。
参考来源 - 水煤焦浆的成浆性能研究The ratio of 2∶1 is the best ratio to produce maximum biogas yield.
在鸡粪与玉米秸秆和猪粪与玉米秸秆配比均为2∶1时,沼气产量最大,产气速率峰值最大,产气效果最好。
参考来源 - 不同配比鸡粪、猪粪与玉米秆混合发酵的产气效果Objective The objective of the research was to explore the optimum proportion of applying bio-organic fertilizer in the saline-alkaline soil.
目的探讨生物有机肥施用于土壤改良的最佳配比。
参考来源 - 生物有机肥对盐碱土中大豆和杨树苗木生长的影响Matching factors:①same gender;②age difference within 3 years old;③same nation;④living in the same pension institute or pension institute in the same administrative area.
配比因素:①性别相同;②年龄相差3岁以内;③民族相同;④对照组和病例组为来自同一老年公寓或其居住老年公寓归属同一行政区。
参考来源 - 西安市社会化养老机构老年人主观幸福感及影响因素研究·2,447,543篇论文数据，部分数据来源于NoteExpress
读者买报纸的钱和客户投放广告的钱配比更加合理，因此报业发展得也更为平衡。
Newspapers are becoming more balanced businesses, with a healthier mix of revenues from readers and advertisers.
这种搭配比其他任何一种搭配都要好。
This match has a better chance of succeeding than the relationship that is other way round.
水和面粉的调配比例直接决定了酱汁的浓稠程度。
The thickness of a sauce is in direct relation to the proportion of flour youuse per cup of liquid.
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