Lebesgue measure

例句：

1. 1.The function is defined by the Lebesgue measure of the set.
   这个函数由集合的勒贝格测度定义。
2. 2.In mathematics, the Lebesgue measure is used to quantify the size and shape of a region.
   在数学中，勒贝格测度被用来量化一个区域的尺寸和形状。
3. 3.The Lebesgue measure is a fundamental concept in probability theory.
   勒贝格测度是概率论中的一个基本概念。