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读了贵刊1999年第7期中的《能间歇排水吗?》以下简称《何文》一文后,很受启发。本人也萌发了做实验验证
After reading the article “How Can Intermittent Drainage?” in the 7th issue of your magazine in 1999, it is inspired by the article “He Wen”. I also germinated to do experiment verification