... 有效范围;有效测程：effective range 有效递减率：effective decline rate 有效的增产技术：sophisticated stimulation technique ...
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effective cathode current decline rate 有效递减率
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Thirteen of the 17 countries with enough observations to compute annual effective tax rates in both 2009 and 1999 experienced a reduction in their tax rate with a median decline of 5 percentage points.
FORBES: A Cross Country Comparison Of Corporate Income Taxes
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