分析研究了兰州观象台czb - 1型竖直摆倾斜仪资料的漂移现象，并依据日均值曲线的漂移趋势，对日均值进行了漂移的剔除。
The drift of CZB-1 tiltmeter at Lanzhou Observatory is analyzed and studied in this paper. According to the drift tendency of daily mean values curve, the drift phenomena could be eliminated.
2002年对兰州观象台fsq与SSY - II两套仪器同时进行模拟与数字记录发现，模拟记录与数字记录有着较为明显的差异。
Both of FSQ and SSY-II instruments were set to record the digital and analog data simultaneously in Lanzhou Observatory in 2002. The apparent difference between two kinds of data was found.
2002年对兰州观象台fsq与SSY - II两套仪器同时进行模拟与数字记录发现，模拟记录与数字记录有着较为明显的差异。
Both of FSQ and SSY-II instruments were set to record the digital and analog data simultaneously in Lanzhou Observatory in 2002. The apparent difference between two kinds of data was found.
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