reciprocating vacuum pump meaning in Hindi

• प्रत्यागमनी निर्वात पंप • प्रत्यागामी निर्वात पंप

reciprocating: व्यतिकारी
vacuum: निर्वात शून्य
vacuum pump: निर्वात पंप
pump: कद्दू पम्प जूता

An investigation into the design and energysaving analysis of gas press ure balance way of reciprocating vacuum pump