| 释义 |
正比例zhèngbǐlì两个量(ɑ和b),如果其中的一个量(ɑ)扩大到若干倍,另一个量(b)也随着扩大到若干倍,或一个量(ɑ)缩小到原来的若干分之一,另一个量(b)也随着缩小到原来的若干分之一,这两个量的变化关系叫做正比例,记作ɑ∝b。{direct proportion; relationship that maintains a constant ratio between two variable quantities (when one is multiplied or divided by a certain number, the other changes by the same ratio), e.g. item ɑ increasing in direct proportion to item b, marked as ɑ∝b} |