... primary organic material 原始有机质 primary packaging material 释义初级包装材料 Primary Project Material Status 项目主材现状报告 ...
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初级包装材料 primary packaging material 高级包装工具 advanced packaging tools ..
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The preparation technics of the new type cushion packaging material that took the corn straw and amylum as the primary composition was developed.
研究了以玉米秸秆和淀粉为主要成分的新型缓冲包装材料的制备工艺。
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