A free-body diagram is a sketch or drawing of the body,isolated from the machine,on which分析语法
A free-body diagram is a sketch or drawing of the body,isolated from the machine,on which the forces and moments are shown in action.
隔离体简图是一个从机器中隔离出来的物体的草图或视图,在图中标出所有作用在物体上的力和力矩.
帮忙分析一下这句的语法,isolated from the machine是补语吗?还有on which句是什么从句?