n. 找回,取回;(计算机系统信息的)检索;恢复,挽回
1.N-UNCOUNT The retrieval of information from a computer is the process of getting it back. (电脑中信息的) 读取
2. N-UNCOUNT The retrieval of something is the process of getting it back from a particular place, especially from a place where it should not be. 找回; 取回
topological retrieval [计]
拓扑检索