利用这些分子化石的特征讨论了恐龙生活时代的古环境特征。
The features of these molecular fossils are used to study the paleoenvironment during the dinosaur age.
生物标志物以分子化石的形式记录了沟鞭藻的起源及演化历史。
Biomarker, as molecular fossil, recorded the origin and evolutionary history of dinoflagellate.
假基因保留了远古基因的信息，被视为基因组进化中的分子化石，成为研究生物进化和动态基因组的重要线索。
Pseudogene is regarded as biologic fossil in genome evolution and key in research of biologic evolution and dynamic genome because it keeps information of ancient genes.
自那时起，科学家陆续找到了化石和分子水平的证据，以及通过能量分析来解释这一进化过程，但是尚未达到完全理解的程度。
Since then, scientists have found clues to explain these animal transitions in the fossil and molecular records, as well as in energetic analyses, but the full story is yet to be discovered.
当射线轰击化石时，反弹回的信号的强度取决于每一个分子的形状和大小，以及它所处的化学环境造成的细微影响。
When the rays hit the fossil, the signal that bounces back depends on the shape and size of each molecule, and how it is being subtly influenced by the chemicals surrounding it.
化石燃料和毁林排放的碳分子滞留于大气中，经过许多世纪才能分解掉。
Carbon molecules emitted by fossil fuels and deforestation linger for many centuries in the atmosphere before breaking apart.
因为这些化石太古老，加上非洲太炎热，无法找到分子存活的明显痕迹。
They are too old and Africa is too hot for significant traces of the molecule to have survived.
第五宗罪：分子基因战化石，酱汤理论是末日。
Fifth SINS: molecular genetic warfare fossils, miso soup theory is the end.
从化石记录和分子生物学证据方面探讨了大熊猫分类和演化的研究现状及进展。
This paper mainly discusses recent advances on taxonomy and evolution of giant panda in view of fossil record and molecular biology.
国内外在现代分布、系统分类及其演化、化石历史、遗传学以及分子生物学等方面对栎属植物进行了深入的研究。
The researches of Quercus have been on the modern distribution, origin and phylogeny, fossil history, genetics and molecular biology etc.
几十年来，古生物学家研究化石和分子生物学家，研究遗传学不同意龟是否更密切相关的鸟类和鳄鱼或蜥蜴。
For decades, paleontologists who study fossils and molecular biologists who study genetics have disagreed about whether turtles are more closely related to birds and crocodiles or to lizards.
分析了用于推测被子植物起源时间的分子、化石和地理分布证据。
The evidence from molecular clocks, fossils and geographic distribution data on the origin time of angiosperms has been greatly accumulated in the past two decades.
某些特殊分子可能成为潜在的标志化石。
Some particular genera and species can be consided as latent guide fossil.
天然气是一种以轻烃为主的混合物，由于缺少大分子指纹化石，许多重要的成因信息难以单纯依靠组分获得。
Nature gas is a kind of mixture in which light hydrocarbons are dominant, it is very difficult to acquire some important origin information because macromolecule fingerprint fossil is absent.
然而，利用分子钟方法所得出的不同门类起源时间总是早于化石记录，因此分子钟与化石记录的矛盾仍十分突出。
However, the origin time inferred by molecular clock is always earlier than that by the fossil record. This approach is still controversial.
介绍了生产无臭液化石油气分子筛的选择、脱臭塔的选型以及生产操作条件。
The article introduces selection of molecular sieve for producing deodorized LPG, selection of deodorization tower, and condition of production operation.
介绍了生产无臭液化石油气分子筛的选择、脱臭塔的选型以及生产操作条件。
The article introduces selection of molecular sieve for producing deodorized LPG, selection of deodorization tower, and condition of production operation.
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