这种材料可以快速固定断骨，之后骨头完全再生，因此不需要钉子和固定针了。
And which then leads to its full regeneration, with no need for nails and pins.
我们的研究首次以实验证实了：在一个特定的发育时间窗口内，哺乳动物的心肌可完全再生。
Our study is the first to experimentally demonstrate that the mammalian heart can completely regenerate heart muscle during a defined window of development.
因为催化剂在再生器中停留时间不足，故返回反应器的催化剂可能未被完全再生。
Catalyst returning to the reactor may not be completely regenerated because of insufficient time in the regenerator.
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