...度计常见故障及原因分析 [医疗装备 Chinese Journal of Medical Device] 721型分光光度计的维修 [现代仪器 Modern Instruments] 721型分光光度计故障维修一例 [医疗装备 Chinese Journal of Medical Device] ..
This paper introduced some common faults of 721 spectrophotometer, found out the causeofformation, andpresentedfixingmethod, it may be used for instrumentmaintenance for reference.