cost-effective ratio 费用效果比
effective slip ratio 有效滑流比 ; 有效滑距比
effective field ratio [电磁] 有效磁场比
effective pitch ratio 有效螺距比 ; 有效节距比
effective velocity ratio 有效流速与船速比
effective aspect ratio 有效展弦比 ; 有效长宽比
effective precipitation ratio 有效降水比
effective damping ratio 有效阻尼比
A method for calculating the effective ratio is proposed in the paper.
在此基础上确定了抗倾有效比的计算方法。
The total effective ratio of two groups had significant difference(P<0.05).
两组总有效率比较,差异有显著性意义(P<0.05)。
Result: Symptom of most patients disappear or relieve, the effective ratio of operation was 92.6%.
结果:大部分患者症状消除或缓解,手术有效率为92.6%。
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