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1892年，托马斯·罗宾斯开发出一种用于运载煤炭，矿石和其他原材料的输送带。
In 1892, Thomas Robins developed a conveyor belt for carrying coal, ore and other raw materials.
youdao
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1892年，托马斯·罗宾斯开发出一种用于运载煤炭，矿石和其他原材料的输送带。
In 1892, Thomas Robins developed a conveyor belt for carrying coal, ore and other raw materials.
youdao