date: 20131005 start time: 10:45:16 file: 02C0_1号站
date: 20131005 start time: 10:50:04 file: 02C1_2号站
date: 20131005 start time: 10:50:06 file: 02C1_2号站
date: 20131005 start time: 11:08:25 file: 04C1_3号站
date: 20131005 start time: 11:52:59 file: 02B0_4号站
date: 20131005 start time: 11:59:29 file: 03B0_5号站
date: 20131005 start time: 11:59:33 file: 03B0_5号站
date: 20131005 start time: 12:18:40 file: 04B1_6号站
求助怎么将上面红色的重复记录删除。