<https://unacademy.com/course/hindi-fluid-machinery-module-1-for-gate-civil/X1C65GQG>
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"Get access to the latest Part 20 Fluid Machinery (Hindi) prepared with GATE & ESE course curated\n  by Mohit Prajapati on Unacademy to prepare for the toughest competitive exam."
<https://unacademy.com/lesson/part-20-fluid-machinery-hindi/1CSZCZ3F>