燃烧过程释放CO2，来自森林的木材是绿色燃料，森林吸收CO2。

Assuming it comes from properly managed forests, however, wood is a green fuel because the CO2 released when it gets burned will be sucked from the air by the trees planted to replace the felled ones.

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最棒的是这一过程能够自我供能——钚被裂变破坏时释放能量，这一能量可以供给燃烧炉。

The best part is that the process can power itself—plutonium releases energy as it destroyed by fission, and that energy can power the burner.

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在研究这些疾病爆发的过程中，科学家们发现受影响的树木会向树叶中释放以酚类物质为主的有毒化学物质进行反击。

In studying these outbreaks, scientists have discovered that affected trees fight back by releasing toxic chemicals, mainly phenols, into their foliage.

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So, that process happens fast but you also need this neurotransmitter release and activation to happen fast so that you can have rapid activity.

所以 电传递过程很快,但你仍需要神经递质的,快速释放和快速激活,以便使你快速活跃起来

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This process, which is shown schematically here, as a vesicle fusing with the cell membrane and then dropping its neurotransmitter only happens when an action potential reaches the end of the axon.

这一过程 扼要地展示在这里,小泡同细胞膜融合,释放其神经递质,这只发生在动作电位抵达轴突末梢时

耶鲁公开课 - 生物医学工程探索课程节选

It gets produced in response to a signal so there's a binding of a ligand to a receptor, the enzyme that does this conversion is activated and more cycle AMP is released.

这类分子的产生是对信号做出的一种反应,当配体和受体结合时,催化这种转化过程的酶被激活,更多的cAMP释放出来

耶鲁公开课 - 生物医学工程探索课程节选