nitrogen cycle

短语词组

短语

• nitrogen n cycle 氮循环
• nitrogen -phosphorus cycle 氮磷循环
• carbon n nitrogen cycle 碳
• nitrogen cycle bacteria 氮循环茵;氮循环菌
• soil nitrogen cycle 氮素循环
• Nitrogen cycle refrigeration 氮循环制冷
• the nitrogen cycle 氮循环;氮素循环;循环
• carbon nitrogen cycle 碳循环;碳
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