1·They are often in direct proportion to their wealth.
而这一点往往和他们的财富水平成正比。
2·Ability is always in direct proportion to the effort.
能力永远和曾经的付出成正比。
3·What you get is in direct proportion to what you give.
你所得到的与你所付出的成正比。
4·Efficiency rises in direct proportion to the incentives offered.
效率与激励成正比增长。
5·The voltage in the signal varies in direct proportion to the sound wave.
信号中的电压按声波比例变化。
6·Members' background, income and consumption throw into direct proportion.
会员学历、收入与健身消费成正比。
7·The increment of juvenile wood was in direct proportion to the growth rate.
幼龄材生长量与树木生长速率成正比。
8·The hardness of material is not in direct proportion to the wear resistance.
材料的硬度和耐磨性不成正比；
9·The chances of survival are in direct proportion to the age of the individual.
存活的几率与个体的年龄成正比。
10·Heat dissipation in MOS gate is in direct Proportion to its output switching activity.
MOS逻辑门电路的功率损耗与其门电路的输出翻转成正比。