FFR Fractional Flow Reserve 血流储备分数 FFR Field Failure Rate 现场失败率 FFR Ford Foundation Report (magazine) 福特基金会的报告(杂志) ..
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Field application has shown good effect. The rate of casing failure has reduced by over 20 percent, thus ensuring normal production in thermal recovery Wells.
经现场应用效果明显，可使套管损坏率下降20个百分点以上，从而保证了热采油井的正常生产。
ESP high comprehensive failure rate, however, brought heavy loss to oil field.
然而，潜油电泵机组的综合故障率较高，给油田造成重大损失。
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