作者: Naoki Ueda , Tetsuya Tamaki , Tsubasa Tomoda , Tomohito Nakata , Koko Hanada
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摘要: Provided is a work state measurement device comprising: an observation timing notification unit which notifies observer each prescribed time interval of start and end as wherein made; input observed states are separated into plurality categories received input; recording weights the inputted between with information categories, records same states.