selectionismn.选择学说selectionn.选择；挑选；挑选出来的人或事selection replacement technique选择替换技术selection of hydraulic cylinder液压缸选用selection for library collection文献选择selection of secondary variables辅助变量选择Selection optimization mechanism选择优化机制Selection of cheese and biscuits精选芝士小点selection of management patlerns管理模式选择selection of experimental factor试验因子选择Selection of Followup industries后续产业选择selection of dependent variables被解释变量选择