第359篇Cotton Ginning and Interchangeable Parts:The Legacy of Eli Whitney

第359篇Cotton Ginning and Interchangeable Parts:The Legacy of Eli Whitney-kingreturn
第359篇Cotton Ginning and Interchangeable Parts:The Legacy of Eli Whitney
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Cotton Ginning and Interchangeable Parts:The Legacy of Eli Whitney

Cotton is a soft fiber that grows around the seeds of the cotton plant.It was first cultivated in the Indus Valley about 6,000 years ago and then spread to Egypt,Persia,China,and the Mediterranean.For thousands of years,the cultivation of cotton was very labor-intensive. Many steps were involved in preparing cotton to be used in a garment,and many machines were invented to make cotton more valuable as a general-purpose textile material.

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