... proportional quantities 比例量 proportional solenoid 比例电磁阀 ; 比例电磁铁 proportional cover 比例分保 ...
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The relationship between two quantities when a change in a second quantity is directly proportional to a change in the first quantity.
两个变量之间的一种关系，第二个量的变化直接和第一个量的变化成比例。
This angular shift, called the parallax of Venus, would provide a measure of the distance between Earth and Venus because the two quantities are inversely proportional to each other.
这个角差称为金星视差，可以做为地球和金星距离的指标，因为两个数值互成反比。
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