About Li Qiang
About China Oilfield Services Go. ,Ltd.
About Dong Shexia
About China Oilfield Services Go. ,Ltd.
About Lu Zhenxing
About China Oilfield Services Go. ,Ltd.
About Cai Puli
About China Oilfield Services Go. ,Ltd.
About Wu Mingming
About College of Mechanical and Electronic Engineering, Southwest Petroleum University
About Runhua Yumifeng
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About software
About wear
About circular cone
About structural optimization
About fluid dynamics
About simulation
About sealing device
About cutting(machining)
About horizontal well
About エロージョン
About 評価法
About 試験データ
About 評価方法
About エロージョン摩耗
About 投球動作
About staged fracturing
About sliding ball sleeve
About tee
About erosion wear
About evaluation method
About Sealing devices
About Piping fittings,valves
About 投球
About エロージョン摩耗
About 評価方法
About 研究