论文部分内容阅读
前两天我们班同学参观了自来水厂。我看见过滤后的自来水也不算很干净。回来后，我突发奇想：把自来水加热后不就可以杀菌消毒了吗？这样可以提高自来水的洁净度。我设想了一个好办法，即利用太阳能加热普通的自来水并杀菌消毒，然后，分别供应需要冷、热水的家庭和单位。我的?
Two days ago our classmates visited the waterworks. I saw filtered tap water is not very clean. Came back, I suddenly whim: heating the water can not sterilize it? This will improve the cleanliness of tap water. I envisioned a good way to use solar energy to heat and sterilize common tap water and then to supply homes and units that needed cold and hot water respectively. mine?