THE WHIRLFLOW LAW AND APPLICATIONS OF SPRING—WHIRLFLOW CASING CENTRALIZER
Zhang Jingfu, Li Chenglin, Wang Zhongfu, Li Bangda, Han Shujiang
Editorial office of ACTA PETROLEI SINICA . 1997, (1): 111 -115 .  DOI: 10.7623/syxb199701019

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