secondary raw materials 中文意思是什麼
secondary raw materials
解釋
再生原料-
With the nervous aggravation of the raw materials and energy shortage problem, the retrieval and utilization of secondary fiber become important day by day
摘要隨著造紙原料緊張、能源短缺等問題的加劇,二次纖維的回用變得越來越重要。
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