求翻译：由于电力系统主要由R、L、C等元件组成, 这些程序在求解用微分方程描述的电力元件方程时, 通常采用简单易行的变阶、变步长、隐式梯形积分法。是什么意思？

Power system mainly consists of components such as r, l, and c, these programs in solving the equation of power components described by differential equations, usually by using a simple change order, variable step size, the implicit trapezoidal integration method.

Because the electrical system is largely R L , C , and components, which are used in the differential equations describing the power element equations, it is usually a simple, easy-to-the-line, STEP, implicit trapezoidal integration.

Because the electrical power system mainly by parts and so on R, L, C is composed, these procedures when solution with differential equation description electric power part equation, usually uses easy and feasible changes the step, changes the length of stride, the implicit trapezoidal integration.

Because of the power system consists mainly of components such as r, l, c, these programs when solving equations with differential equations describing the power of components, typically by using a simple variable-order, variable step size, by implicit trapezoidal integration.

正在翻译，请等待...