backplate

"Condoms are designed to protect against sexually-transmitted diseases."

"The engineer used a capacitor to store energy for the camera's flash. "

"They harnessed the horse to the post."

"The conjunction of the two roads created a traffic jam. "

"The aquifer's underwater supply of fresh water is crucial for the town's water system. "

"The capacitor in the electronics project has a high capacitance, allowing it to store a large amount of electric charge. "

"The discussion generated an uproar."

"My grandpa, who has trouble breathing, is working hard to strengthen his diaphragm muscles for better lung function. "

"The teacher used the microphone to project her voice clearly to all the students in the large classroom. "

"The engine has four cylinders that move up and down to power the car. "

"The electrician fixed the broken lights in our kitchen. "

"The air conditioner uses a condenser to cool the refrigerant gas, turning it into a liquid that helps cool the room. "