collectionsn.收集；收藏名词collection的复数形式.collectionn.收集；收取，托收；聚集；收藏品；募捐collection technique采苗技术collection procedure收集程序collection selection信息集选择Collection and usage藏与用collection of essays文集collection elasticity馆藏弹性Collection evaluating信息资源评估collection department代收款项科collection commission托收手续费collection literature馆藏文献