常量英文：constant，const
◇常量分析 macro analysis; 常量營養素 macronutrient
參考例句：
Excess sugar in the urine,often associated with diabetes mellitus.
糖尿尿中反常量的糖，常與糖尿病有關
In music theory, macroanalysis is a method of transcribing.
在樂理中，常量分析是采譜的方法。
Formal expression containing variables; becomes a sentence when variables are replaced by constants.
包含變量的表達式；當變量被常量代替時變成命題。
But to simplify that analysis we shall regard the acceleration as constant, our estimate will not be affected
但為簡化分析起見，我們稱這種加速為常量，這樣做不會影響我們的討論。