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2020, Vol. 41(15): 54-57    DOI: 10.13884/j.1003-3807hxjy.2019030153
On Effect of “Oil Seal Method” on Dissolved Oxygen in Water Sample by Digital Experiment
ZHANG Bao-Ding1, XU Hong2* , SHENG Jian-Fa1, SHENG En-Hong3
1. Xuancheng No. 2 Middle School, Xuancheng 242000,China;
2. Department of Education and Sports Administration of Xuancheng Anhui Province, Xuancheng 242000,China;
3. College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, China
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