事事讲究经济效率的生物在长期的进化中，应该不会让大量无功能的“垃圾”堆积在充满活力的生命细胞中。
It is unreasonable for organisms, in which there is the principle of maximum economy, to accumulate nonfunctional garbage in vital living cells during their long term evolution.
形态完整，作为生物有机体生命意义之所在，同样也是有活力的城市应有的形态特征。
Morphological integrity, as where of the meaning of the organism, is also the feature of the living city.
试验证明，稀土具有重量活性，能刺激生命活力，在生物学上有广泛的应用。
Tests proved that rare earth has physiological activeness and can stimulate vigour of organism.
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