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家家户户每年要消耗很多食用油,油用完后,桶就丢弃了,很是浪费。我经过反复摸索,利用食用油桶自制成多种实验仪器,应用于教学中,收到了很好的效果,现介绍如下:
Every household consumes a lot of edible oil every year. When the oil is used up, the bucket is discarded. It is a waste. After repeated explorations, I made use of edible oil barrels to make a variety of experimental instruments and applied them to teaching. I received very good results. The following are introduced: