使用此子程序定义非均匀的分布式机械负载（压力和体力）。

当负载是时间和/或位置的复杂函数时，通常使用用户子程序DLOAD。

通常可以用* AMPLITUDE选项建模简单的时间函数。

子程序也可以用来定义一个随元素号和/或积分点数而变化的负载。(This subroutine is used to define non-uniform distributed mechanical loads (pressure and physical force).

When the load is a complex function of time and/or location, the user subroutine DLOAD is usually used.

A simple time function can usually be modeled with the * AMPLITUDE option.

Subprograms can also be used to define a load that varies with the number of elements and/or points of integration.)