生命化学的

The separation ability of semipermeable membranes needs to be understand from a molecular point of view for applications in the life sciences, chemistry, and chemical engineering.

从分子水平上研究半透膜的性质在生命科学、化学以及化学工程中有着重要的作用。

For example, male-male copulations in locusts can be costly for the mounted male, and this cost may in turn increase selection pressure for males' tendency to release a chemical called panacetylnitrile, which dissuades other males from mounting them, said Bailey.

贝利说：&举例来说，雄性蝉之间的交媾对上位的雄性蝉来说代价昂贵，会付出生命的代价，而这种代价可能反过来增加了选择压力，促使雄性蝉倾向于释放一种称为panacetylnitrile的化学物，这种化学物会阻止其他雄性蝉，避免他们上位交媾。&

The existence of natural toxins is a fundamental phenomenon of life, it is a set of specific bioactive chemical substance, which evolved through a long period from nature. Natural toxins show multiplicities in biogenic source, chemical structure, biological function and active mechanism.

生物毒素的存在是一种重要的生命现象，它是自然生物界长期进化发展的具有特殊生物活性的化学产物，而且在生源、化学、功能、作用机制等方面表现出多重多样性。

The existence of natural toxins is a fundamental phenomenon of life, it is a set of specific bioactive chemical substance, which evolved through a long period from nature. Natural toxins show multiplicities in biogenic source, chemical structure, biological function and active mechanism.

文摘： 生物毒素的存在是一种重要的生命现象，它是自然生物界长期进化发展的具有特殊生物活性的化学产物，而且在生源、化学、功能、作用机制等方面表现出多重多样性。

The properties of ISEsand sensitizing luminescence of rare earth cations were also studied.

超分子化学是当前化学、生命科学和材料科学的前沿研究领域之一。

Cyclic acylphosphoramidates (2-hydroxy-2-oxy-1,3,2-oxazaphospholidine-5-ones,CAPAs) are phosphate activated amino acids possessing both a carboxyl-phosphorylanhydride and a phosphoramidate bond in a ring.

为了理解P-N键在生命起源化学和生物化学中的可能作用，本论文系统地研究了模型化合物N-磷酸化氨基酸(N-phosphono-amino acids，简称NPAAs)的化学性质。

At these nadirs, chemosynthesis—the thermal and chemical energy given off by deep-sea vents—gives life to creatures like the eelpout fish and tubeworms pictured here.

在这些nadirs ，化学合成-热和化学能源鉴于深海喷口――生命的动物一样， eelpout鱼类和管虫图案在这里。

At these nadirs, chemosynthesis—the thermal and chemical energy given off by deep-sea vents—gives life to creatures like the eelpout fish and tubeworms pictured here.

在这些最低点，化学合成---上升的热气流和化学能量释放出经由深海的排气口---给予生命的生物如粘鱼之类和管蠕虫图片在这里。

The theory or doctrine that life processes arise from or contain a nonmaterial vital principle and cannot be explained entirely as physical and chemical phenomena.

生机论一种理论或学说，认为生命的过程来自于或包含有一种非物质的生命原则，不能完全解释为物理和化学现象

What these extraterrestrials will be like depends on where and how we expect to meet them.

太阳系中有多个星球可能适于类地生命的存在，这种生命基于碳生物化学特性，将水作为生存要素。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。