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一、小引由于我国石油、化学工业的发展,人们对液态原料和燃料的需要曰益增加。所以液体物料的短途运输问题,就摆在了人们的面前。
First, a small lead due to the development of China’s oil and chemical industry, people’s liquid materials and fuel needs increased. Therefore, the problem of short-term transport of liquid materials, it is placed in front of people.