The meanings of "mechanical" and "life" are both stretching until all complicated things can be perceived as machines, and all self-sustaining machines can be perceived as alive.

“机械”与“生命”这两个词的含义在不断延展，直到某一天，所有结构复杂的东西都被看作是机器，而所有能够自维持的机器都被看作是有生命的。

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So it's no wonder that biomedical engineers have had a tough time building a mechanical replica to keep patients with heart failure alive and well.

由于心脏复杂的生理结构，生物医学工程师需要耗费漫长的时间来建造一个机械复制品，使用人工心脏来保持心力衰竭患者良好地活下去。

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The score from this questionnaire was compared with their requests for such things as the use of mechanical ventilation to keep them alive and resuscitation to bring them back from the dead.

同时，他们又调查了那些用医疗帮助（比如呼吸机）来维持生命和从濒死边缘生还的人。然后他们将两类人的调查表的结果进行了比较。

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The score from this questionnaire was compared with their requests for such things as the use of mechanical ventilation to keep them alive and resuscitation to bring them back from the dead.

ECONOMIST: Religion, medicine and death