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把水壶里的开水装在保温瓶里,每当壶内只剩小半壶水时,壶盖就容易掉在地上,此时,水蒸气从壶口猛冲出来,烫得手疼疼的。为克服这个问题,我设计了一种不掉盖的水壶。结构图如下。
The water bottle installed in the thermos flask, when the pot is only half a pot of water, the lid is easy to fall to the ground, this time, water vapor stormed out from the Hukou, hot hand ache. To overcome this problem, I designed a kettle that I could not lift. The structure is as follows.