... 函数的展开 expansion of a function 扩大率 expansion rate 期望(值) expectation ...
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井径扩大率 hole diameter enlargement rate
扩大贷款利率浮动区间 widened the floating range of lending rates
功率扩大器 POWER AMPLIFIER
扩大侧向电导率 extended lateral range electrical conductivity ; ELREC
功率扩大机 POWER AMPLIFIER
扩大总线速率 Expansion-Bus Speed
扩大侧向电导率测量仪 ELREC tool
扩大零消费税率 zero-rating of GST
现场应用结果表明，该井井眼稳定，井径扩大率很小，有效地解决了井眼失稳问题。
The wellbore is effectively protected from sloughing with small enlargement rate because of applying these techniques.
试验井三叠系、石炭系平均井径扩大率小于6%，完井电测及下套管固井等作业顺利。
Hole enlargement through the Tertiary system and the Carboniferous system in test Wells are less than 6%, therefore, got a successful completion logging and running casing strings.
基于弹性力学理论及岩石摩尔-库仑强度破坏准则，提出了欠平衡钻井条件下井径扩大率的预测方法。
Based on the theory of elasticity and molar-Coulomb strength failure criterion, we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling.
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