adj.部分的，必须的，构成整体的
n.要素；成分；组成部分

The integrant of a function is the result of integrating that function.
函数的积分是该函数积分的结果。
The integrant must be continuous over the interval of integration.
被积函数在整个积分区间上必须连续。
The integrant can be expressed as a sum of simpler functions.
被积函数可以表示为更简单的函数之和。
In calculus, the integrant is often referred to as the "integrand".
在微积分中，被积函数通常被称为"被积表达式"。
The integrant can be used to find the area under a curve.
被积函数可用于求曲线下的面积。
To evaluate an integral, we need to know the integrant and the limits of integration.
要计算定积分，我们需要知道被积函数和积分上下限。
The integrant may contain both algebraic and transcendental functions.
被积函数可能包含代数函数和超越函数。
It's important to choose the correct form of the integrant when solving an integral equation.
在解积分方程时，选择正确的被积函数形式非常重要。
The integrant determines the shape of the antiderivative graph.
被积函数决定了原函数图像的形状。
By using substitution, we can simplify the integrant and make integration easier.
通过使用换元法，我们可以简化被积函数，使积分更容易。