它确实朝着正确的方向对心血管系统具有正性作用。
If anything the wind does blow in the right direction towards beneficial effects on the cardiovascular system.
结果表明与不使用硝酸盐者比较，在硝酸盐使用者中可以观察到骨密度增加，证实硝酸盐对提高人类骨密度有正性作用。
Subjects reporting nitrate use had increased BMD compared with non-users, confirming that nitrates have positive BMD effects in women and men.
试图通过分析综合海洋中发生的碳循环过程中的正、负反馈作用，探讨海洋碳循环系统的复杂性。
This paper discussed carbon-recycling processes in the ocean in an attempt to summarize the characteristics of a particular open complex giant system—the oceanic carbon recycling system.
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