平时我们写错了字,就会用到橡皮,可是错字擦掉后,作业本和桌上常会留下很多橡皮屑。所以,我想发明一种新型的橡皮器,它不但能擦去各种笔写的字,而且橡皮器里还装有纽扣式电动机。当用橡皮器擦字的时候,它与纸摩擦产生的能量会带动纽扣式电动机,电动机产生的吸力可以把橡皮屑吸进橡皮器顶部的盖子里。如果盖子里的橡皮屑满了,把盖子打开,将橡皮屑倒出即可。 Usually we write the wrong word, it will use the eraser, but after the wrong word is erased, the workbook and the table often leave a lot of rubber shavings. Therefore, I would like to invent a new type of rubber eraser, which not only erases all kinds of written words, but also a button motor in the eraser. When rubbed with a rubber eraser, the energy generated by its friction with the paper drives the button motor, and the suction created by the motor draws the rubber scraps into the lid on the top of the rubber applicator. If the cover is full of dandruff, open the lid and pour out the dandruff.