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The fundamental principle in silk reeling is to draw the silk fibre from the cocoon and to combine several fibres into one thread that can be used in weaving. 去书内
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  • 杨金松 杨金松

    I think this book wants to us the influence of industrialization. However, I think the decline of village's economy is affected by the social environmment. Irrational fiscal policy destorys it.

    2016-04-05 喜欢(0) 回复(0)

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