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吸尘器发明于何时?追溯起来还不算太远:就在本世纪初。在吸尘器发明之前,除尘的方法是多种多样的。有人用抹布,有人用小笤帚,在英国的铁路上则使用大功率的压气机往车厢里灌气,直接把垃圾吹出窗外。这时,车厢附近的人可就遭罪了。1902年,桥梁建筑师舒伯特·布特从这种吹气机得到启发,他想:尘土最好不是向外吹,而是吸进带有过滤装置的封闭容器里。于是,吸尘器诞生了。最早的吸尘器是巨大的马拉的大篷车。这些吸
When the vacuum cleaner was invented? Not too far back to trace: in the beginning of this century. Before the vacuum cleaner was invented, there are many ways to remove dust. Some people use rags, some with small brooms, and on British railways, they use heavy-duty compressors to fill the carriages and blow the trash out of the window. At this time, people near the car may suffer. Inspired by this blower, bridge architect Schubert Bout, in 1902, thought: It is better not to blow the dust out, but rather into a closed container with a filter. So, vacuum cleaner was born. The earliest vacuum cleaner is a huge horse-drawn caravan. These sucks