UCL assignment
2017-02-13 19:50:08 0 举报
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大纲/内容
Air quality
Equipment idTime stampPM valueAPIRecorder id
Observation stations(3D)
OB IDOB Name
Province
PNameProvince IDAreaPopulation
Equipment (3D)
IdFunctionsObservation stations idStart timetag
Maintenance log
Recorder id Equipment id Time stampTagMore information
City
CITY IDCITY NameAreaPopulation
Recorder
IdNameObservation id Province id Employed date
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