选择比较水平
comparison level for alternatives
GIS服务动态选择选择机制
dynamic GIS service finding mechanism
比较比例方法
direct comparison proportional method
变比选择
choice of transformation ratio
抽速比选择
selection of pumping speed match
传动比选择器
transmission ratio selector
脊椎动物选择比
vertebrate selectivity ratio
竞争力和比较效益
Competitiveness and comparative effectiveness
模拟和比较
Simulation and Comparison
收敛性和比较性研究
convergence and comparison study of solution
序列比较和分析
sequence alignment and analysis