This natural system is sometimes disturbed, and irregular beats occur.

这种天然的系统有时会发生紊乱从而出现不正常的跳动.

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Usually disasters happen within the interaction between humankind and natural system.

灾害往往伴随在人类与自然系统的交互作用中.

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So now we're working to try to restore the natural system.

所以我们正努力设法恢复这里的自然生态系统.

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Irreparable problem is the destruction of the natural system.

乔?巴斯奎特:对自然系统的破坏是最棘手问题.

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Major differences in metabolism between urban system and natural system are compared and studied.

对比研究了城市系统与自然生态系统物质代谢的主要差别.

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