那些生物个体拥有一些特征，这些特征为它们的生存竞争提供了有力条件，帮助它们更容易地存活下来，并且它们会将自己的基因传给下一代。
Those individuals who possess characteristics that provide them with an advantage in the struggle for existence are more likely to survive and contribute their genes to the next generation.
在这些条件下可可树只能存活30年甚至更少。
Under these conditions the trees live only 30 years or less.
传播还取决于可能影响蚊虫数量和存活的气候条件，例如降雨模式、气温和湿度等。
Transmission also depends on climatic conditions that may affect the number and survival of mosquitoes, such as rainfall patterns, temperature and humidity.
在恶劣环境条件，包括长期寒冷时期，他们存活了很长时间。
They had survived for so long, under harsh environmental conditions, which included long frigid periods.
这样它们就能在更炎热、更干旱的条件下存活。
This would allow them to thrive in hotter, drier conditions.
有毒资产的价格尚需翻倍才能满足银行存活的条件。
The prices for toxic assets may need to more than double for the Banks to survive.
对于建筑尺度方面的弹性衡量，Beatley说明了建筑学中的“被动存活能力”的概念——丧失了关键设施的建筑仍能保持人居条件的能力。
For resilience at the building scale, Beatley points to the idea of "passive survivability" : the ability of buildings to maintain livable conditions after the loss of essential services.
这种在潮湿阴冷条件下生存的能力部分取决于它们缓慢的行动能力和代谢能力，代谢缓慢意味着只需要很少的食物供应就可以存活。
They are able to live in both wet and cold conditions partly because they move slowly and have a slow metabolism that allows them to survive on a minimal food supply.
澳大利亚有些湖泊的生存环境跟古代的火星上的条件一样严酷，但是根据新的DNA显示，在这里不但有生命存活下来，而且生长的很繁盛。
Life not only survives but thrives in Australian lakes where conditions may be as harsh as those on ancient Mars, a new DNA analysis suggests.
完全有可能等它们繁殖出足够数量的后代以后，将来有一天放它们回归自然，其条件是它们还存活而且猎人不再捕杀。
There is always the chance that enough offspring will be born to return them one day to their natural environment - provided it still exists, and that hunters don't kill them again!
这微酸性环境中也为其他产烷生物的存活提供了更好的条件。
The less-acidic environment that results becomes a better host for other methanogens.
即使在理想条件下，浮游植物的存活时间也只有1、2天。
Even in ideal conditions an individual phytoplankton only lives for about a day or two.
为了在这样恶劣的条件下存活下来，科恩松（Pinus longaeva ）只消耗很少的能量用于生长。
To survive on this ascetic diet, Pinus longaeva invests very little energy in growth.
实验证明：艾滋病病毒生命力很弱，只能存活于血液中，离开适宜的条件立即死亡。
Results show: HIV vitality is weak and can only survive in the blood, leaving optimal conditions and died instantly.
科学家很疑惑这些生物是如何在这样艰难的条件下存活的。
It puzzles scientists how these creatures can survive in such severe conditions.
用表达ntn的条件培养基处理原代培养胚胎中脑神经元，发现其有促进神经元存活和发育功能。
It was found that NTN can promote survival and growth of neurons when culturing primary embryonic mesencephalic neurons with conditioned medium contained NTN.
如果提供适当的条件，可以保证许多物种存活多年并在室内繁殖。
If given adequate conditions, many species can be kept alive for years and captive-bred.
通过研究产卵管分泌物对韧皮部卵室的作用机制，确定了产卵管分泌物是决定天牛存活的先决条件。
Through the research, we can confirm, secretion from ovarian is the previous condition to decide the survival of Anoplophora glabripennis.
其实在正常的医疗条件和药物可及的情况下，相信病人现在可以存活30年。
In fact, at normal medical conditions and drugs can and circumstances, I believe the patients may now survive 30 years.
而且细菌能够在完全干躁的条件下存活。
In addition, bacteria can survive in a completely desiccated state.
水肥资源贫乏、光照较强的条件下，两类苗存活率和占据空间能力均较低，实生苗在数量和占据空间能力上占优势。
Oppositely, in habitats lack of sufficient nutrition, the survival rate and space-occupying ability of seedlings were low, and grown-up plantlets would preempt in number and space occupation.
农杆菌与愈伤组织混合培养时给予适当的负压条件可提高愈伤组织转化频率和存活率。
The proper negative pressure, when agrobacterium and callus cultivated, could increase transformable frequency and survival rate of callus.
结果：显示耳蜗螺旋神经节神经元在体外无血清培养条件下，可以存活并进行正常分化。
Results: The spiral ganglion neurons could survive and had a normal phenotypic differentiation in serum-free medium.
例如，兼性厌氧微生物就是既可以生长在厌氧条件下也可以在有氧条件下存活。
For example, a facultative anaerobe is an organism that can grow under anaerobic conditions but is also able to survive in aerobic conditions.
病菌在田间条件下，只能存活两个生长季节。
The fungus could only live for two seasons under the field conditions.
这些植物在非常寒冷的条件下无法存活。
实验结果显示，早期的低盐和充分的水分条件是胡杨幼苗存活的关键。
The experiment reveals that the low salinity and the sufficient water supply are the most important for the survival of seedlings of Populus euphratica.
实验结果显示，早期的低盐和充分的水分条件是胡杨幼苗存活的关键。
The experiment reveals that the low salinity and the sufficient water supply are the most important for the survival of seedlings of Populus euphratica.
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