Theoretical and experimental studies of a long stroke pumping unit with an auto-mechanical reverse mechanism and a sliding counterweight
By: Lu Yi
Contributors: Oulun yliopisto
Series: Acta Universitatis Ouluensis. C, Technica -- 110; Acta Universitatis Ouluensis -- no. 110
Publisher: Oulun yliopisto
Published: 1997
Place of publication: Oulu
Language: eng; chi
Subjects: Oil well pumps; Design and construction; Sucker rods
Notes: Thesis (doctoral)--University of Oulu, 1997.

Includes bibliographical references.

Includes 10 original papers in Chinese.