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SPOM
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SPOM
Encyclopedia
农学
土壤有机质
释
soil particulate organic matter; SPOM
土壤颗粒态有机质
粒径在53微米~2毫米的土壤中形成的和外部加入的所有动、植物残体不同分解阶段的各种产物和合成产物。包括不同分解程度的植物地上或根部残体以及部分微生物分解产物的土壤活性有机质。
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electronic expansion valve
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electronic exposure camera
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electronic flash lamp
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electronic flight instrument system
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electronic foreign trade and economic management
electronic formula
electronic fuel injection system
electronic fund transfer
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electronic generating method
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electronic government
electronic government, e-government
electronic government security
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更新时间:2026/1/31 11:25:04