DIY PVC pipe birds craft. Handmade garden decoration project. Man empties piggy bank after 10 years—not ready for how much he’s saved An NFL kicker just hit a 68-yard field goal. Yes, you read that ...

Abstract: Hydraulic systems have been widely used in construction machinery, aeronautics, astronautics, automobiles, shipping, and other fields. Piston pumps are power source and core component in the ...