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polymer additives
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polymer additives
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工学
高分子助剂
释
polymer additives
高分子助剂
高分子材料和产品在合成与加工过程中所需加入的辅助性化学物质。简称助剂。又称添加剂、配合剂等。
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plant growth curve
plant growth promoting bacteria,PGPB
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plant growth-promoting rhizobacteria,PGPR
plant growth prompting fung
plant growth regulator
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planthoppers
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planting
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planting spacing
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