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history of chemical fibre industry
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history of chemical fibre industry
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工学
化学工业发展史
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history of chemical fibre industry
化学纤维工业发展史
由人工方法制备化学纤维的发展过程情况。1664年,英国人R.胡克在他所著的《微晶图案》一书中,首次提到人类可以模仿食桑蚕吐的丝,用人工方法生产纺织纤维。经过200多年的不断探索,法国人H.B.夏尔多内终于在1891年首次用人工的方法工业生产了化学纤维,由此开始了化学纤维工业的历史。
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logarithmic
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logarithmically concave function
logarithmically concave polynomial
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logarithmically convex
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logarithmically convex function
logarithmically decreasing function
logarithmically increasing
logarithmically increasing function
logarithmically optimal method
logarithmically subharmonic function
logarithmic amplifier
logarithmic average
logarithmic barrier method
logarithmic binomial formula
logarithmic binomial theorem
logarithmic branch-point
logarithmic calculation
logarithmic calculator
logarithmic capacity
logarithmic chart
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