biological cycle

短语词组

短语

• biological sulfur cycle 生物硫循环
• biological matter cycle 生物物质循环
• biological l cycle 生物循环
• micro -biological cycle 生物小循环;微生物循环
• yearly biological cycle 年生物周期
• element biological cycle 元素生物循环
• biological cycle of substances 物质生物循环
• micro biological cycle 微生物循环;生物小循环
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