the origin of life is a hotly debated topic, and the source of the prebiotic chemicals in earth's so-called primordial soup is one of its enduring mysteries.

the samples from bennu could help scientists understand not only more about asteroids that could impact earth but also about how planets formed and life began.

来自“本努”的岩石样本不仅可以帮助科学家更多地了解可能撞击地球的小行星，还可以帮助他们了解行星的形成和生命的起源。

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he argues that we can only understand how life began, and how living things got so complex, by understanding how energy works.

他认为，只有理解了能量的作用，我们才能理解生命的起源，以及生物为何如此复杂。

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lovers and poets find deeper meaning at night, when we are all apt to pose deeper questions, about our origins and destinies.

我们都倾向于问一些关于生命的起源和命运的深刻问题，恋人和诗人往往在夜里能找到生活更深刻的意义。

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icy objects such as comets may have helped start life on earth by delivering water and carbon-based molecules to the young planet.

像彗星这样的冰状天体曾给年轻的地球提供水和碳基分子，从而促进了地球上生命的起源。

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the origin of multicellular forms of life seems a relatively simple step compared to the origin of life itself.

多细胞生命的起源相对于生命本身的起源来说似乎是一个相对简单的步骤。

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we are going to mars to search for a second genesis of life.

我们去火星是去寻找另一个生命的起源。

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so are you saying that would be the primitive life of the moon?

所以你是说那是月球原始生命的起源吗？

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they are studying the beginning of life.

他们正研究生命的起源。

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many people think that this was important for the beginning of life.

许多人认为，地球上有水的存在这个特性对于生命的起源特别重要。

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membranes were crucial to the origins of life.

细胞膜对于生命的起源至关重要。

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we could be talking about the origin of all life!

我们谈论的可能是所有生命的起源！

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biology specialists in biology study the origin and structure of plant and animal life.

n.生物；生物学生物学专家研究动植物和动物生命的起源和构造。

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the earliest origins of life may come from the" nucleic world", dna and rna differentiated later.

生命的起源可能最早是核酸世界，DNA与RNA是后来分化产生的。

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the origin of life and the earlier evolution of the earth is still a hot spot in the earth sciences;

4生命的起源和早期地球演化仍是当前地球科学讨论的热门课题；

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bed down the livestock; spread earth in a cowshed pigsty, etc

把树叶杂草、泥土等铺在畜圈里

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observation on blocking level of combined intraspinal anesthesia in the operation of abdominal tumor

椎管内联合麻醉在腹部肿瘤手术中麻醉平面的探讨

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observation of the dose in the combined spinal epidural anesthesia by ropivacaine

罗哌卡因椎管内联合麻醉的剂量观察

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effect of different levels of epidural block on sedation of propofol in patients subject to surgical operation analysis of the relationship between the block levels of intravertebral anesthesia and the traction reactions during right hemicolectomy

不同硬膜外阻滞平面对手术患者丙泊酚镇静的影响右半结肠切除术中椎管内麻醉阻滞平面与牵拉反应关系分析

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it also had effect of infiltration anaesthesia similar to 1% procaine, and adrenalin hydrochloride can enhance its anaesthesia intensity and obviously prolong the time of local anaesthesia.

其浸润麻醉效果与1%的盐酸普鲁卡因相当。20%、30%HE对家兔可产生明显的椎管内麻醉作用。

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conclusion the psychological intervention is conducive to alleviate the reaction of the patients with anesthesia in vertebral canal during the period of operation and facilitate their recovery.

结论：心理干预能减轻椎管内麻醉患者围手术期的应激反应，促进患者术后恢复。

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