他用人工热使它成熟。

He ripens it by artificial heat.

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在我们刚刚迈入的网络时代中，频繁的交流正在创造日益成熟的人工世界，为共同进化、自发的自组织以及双赢合作的涌现而准备着。

In the Network Era-that age we have just entered-dense communication is creating artificial worlds ripe for emergent coevolution, spontaneous self-organization, and win-win cooperation.

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报告认为相比于人工林原生成熟森林可以储存更多的二氧化碳，因此砍伐原生林的后果比砍伐次生林更严重，将会释出更多的吸热气体。

Established forests store much more carbon dioxide than plantations, so cutting them down releases more heat-trapping gases, it concluded.

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So biomedical engineers have been working for many years on how to design replacement parts for joints like the hip: the artificial hip is the most well developed of those.

因此,生物医学工程师花了很多年时间,致力于设计像髋关节这样的关节替代品,尤以人工髋关节的研究最为成熟

耶鲁公开课 - 生物医学工程探索课程节选