古代

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intruded, and are relatively barren of fossil s.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intrude d, and are relatively barren of fossils.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

Usually the archeozoic and Proterozoic eras are grouped together and referred to as Precambrian in age. Precambrian rocks have been intensely deformed, metamorphosed and intruded , and are relatively barren of fossils.

通常太古代和元古代被归在一起而称作前寒武纪，前寒武纪的岩石多遭受强烈变形、变质或被岩浆岩侵入，岩石中缺少化石。

The Pb-Pb isochron of metamorphic argillite in Shuangqiaoshan Group is 1 490±68 Ma, while the Nd mode ages of Zhanggongshan Group, Shuangqiaoshan Group, Chenglang Group and Xiushui Group are 1.57 Ga, 1.89 Ga, 1.77 Ga, 1.60 Ga,respectively, less than 1.6-1.9 Ga, which suggest that they formed in Middle Proterozoic Subera.

研究结果还显示，双桥山群变质泥质岩的Pb-Pb等时线年龄为（1 490±68）Ma，而障公山群、双桥山群、程浪群和修水群的钕模式年龄分别为1.57 Ga、1.89Ga、1.77Ga和1.60 Ga，均分布在1.5～1.9 Ga之间，表明这些地层的形成年龄应小于1.9 Ga，是中—晚元古代的产物，同时表明扬子古陆南缘存在古元古代的基底。

By the single zircon U Pb dating method, the quartz syenite porphyny yielded an age of concordance (1 731±29)Ma, and the aegirine augite syenite and syenogebbro are dated upper cocordi...

应用单锆石U Pb法测定年龄，石英正长斑岩谐和年龄为( 1731± 2 9)Ma ，霓辉正长岩、正长辉长岩上交点年龄分别为( 1644± 14)Ma、( 1750± 65)Ma.1650～ 170 0Ma是碱性岩浆活动热构造事件的标志，石英正长斑岩被中元古代晚期的高山河组不整合覆盖，故以 1650～ 170 0Ma作为熊耳群的上限。1650～ 170 0Ma热构造事件是华北地块重大地质事件，有可能是进一步划分中元古代重要的年龄界限。

Study the art of poetry of Chinese ancient time, conduce to the understanding that deepens literature of pair of all China ancient time not only, also can offer for contemporary poetry creation draw lessons from benignantly.

探究中国古代诗歌的艺术，不仅有助于加深对全部中国古代文学的熟悉，也可以为当代诗歌创作提供有益的借鉴。

The cultural circle centered on China was built in ancient East Asia. The diplomatic relationship among China and other states around it was of conferrer and tribute based on the Conferring and Tributary System.

古代东亚建立了以中国为中心的文化圈，古代中国与周边诸国建立的外交关系都是以封贡制度为手段的册封、朝贡关系。

ABSTRACT: There is a significant contrast in scale between Chang'an of Tang Dynasty and ancient western cities , based on a comparative study on the city scale , city contexture and the scale of streets in two different cultures. This paper provides a unique interpretation of Chang'an from the perspective of urban form.

从城市形态的角度出发，从城市规模、城市肌理、街道尺度三个方面对唐长安和西方古代城市进行对比，对唐长安进行了新的解读，认为唐长安与西方古代城市存在着巨大的尺度差异。

This paper introduces firstly the development course and important contortion of science and technology and then tries to explain the effect and importance of the restoration of ancient machines.

用实物来展示过去有着重要作用，但因条件所限，现在仍未能全面、系统地反映出古代科技的盛况及古代机械的繁荣景象，今后加强复原研究的途径之一，是促进高校与企业更密切地结合，以展示过去，引导人们去对比现在和思考未来。

From the view of culturology, exploring the history of ancient Chinese female consciousness and understanding wholly the meaning of ancient art of China are the purpose of this thesis

从文化学的视角探讨中国古代女性意识的进程，更深刻地理解中国古代文化的意蕴，正是本文的宗旨所在。

Methods: Five patients with parkinsonism or dystonia were assigned to general anesthesia using an modified endotracheal tube.

本实验依照人体实验之相关规定进行，五位患有帕金森氏症或肌张力异常的病人接受神经立体定位手术。

If you can benefit from this book, it is our honour.

如果您能从本书获益，这将是我们的荣幸。