城市建设用地合理供应规模的研究是人类从对土地的破坏性利用到集约性利用观念转变的飞跃。
The concept about land use is changed from destructive use to intensive use by the research on reasonable supply scale of land for urban construction.
他还指出，人类健康观念和医学模式发生了深刻转变。
He also pointed out that the concept of human health and the medical model has undergone profound changes.
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