... 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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结果表明桩身轴向应力随深度增加呈递减趋势； 粉喷桩复合地基的有效桩长受桩土模量比与置换率的影响。
The result shows that axial stress of Pile takes on degression along with deepness and the effective length of Pile is influenced by replacement-ratio.
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