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Petroleum Instruments
1004-9134
1999 Issue 6
shun bian dian ci fa zhong fa she ji guan duan shi jian de ying xiang yan jiu
yu sheng bao
..............
page:15-17
ya suo shi ya dian chuan gan qi zhou xiang ling min du xian xing qian xi
yu zhi hui
..............
page:12-14,20
