The failure diagnosis procedure adopted by the Chinese side had been proved correct by decades of practice. 中國的故障診斷程序是經(jīng)過(guò)幾十年實(shí)踐檢驗而被證明是完全正確的。
The dynamometer card analysis is a popular method for diagnosis of failure in pumping wells. 示功圖分析法是目前常用的抽油井故障診斷方法。
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