toggle joints造句

Evans and his younger brother Evan, along with blacksmith Thomas Clark, developed a device for packing flour barrels using a wooden disc operating by a compound lever and a toggle joint.
Answers . com defines a " toggle switch " as " A switch that uses a toggle joint with a spring to open or close an electric circuit as an attached lever is pushed through a small arc . " Binary numbers are just a collection of open and closed circuits.
It's difficult to find toggle joints in a sentence. 用toggle joints造句挺难的