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The Yanshan region is one of the regions where the Neoproterozoic Qingbaikou system is well developed. 摘要燕山地区是中国新元古界青白口系出露最好、层序较为完整的地区。
The acritarch assemblage available can be used fur biostratigraphic correlation of the Qingbaikou System in the vast Yanshan region, North China. 以上疑源类的稳定性和可比性，可作为具有广泛生物地层对比依据。
It is suggested that the deposition of the Qingbaikou system in the Yanshan region represents the cover of the North China block. 认为燕山青白口纪的沉积为华北陆块上真正的盖层沉积。
Ore bodies are hosted by 3rd Subformation of Hongxingshan Formation in Tianhu Group of Qingbaikou System, with the host rocks composed of carbonaceous mylonite and impure marble. 矿体赋存于青白口系天湖群红星山组第三亚组地层内，并受断裂构造的控制，主要呈脉状、透镜状顺层产出，含矿岩石为大理岩和碳质糜棱岩。
In the new plan, the position of the studied strata in the stratigraphic column of Late Precambrian of China shows an impotant relation between Sinian System and Qingbaikou System on the geologic and biologic evolution. 新方案中这些地层在我国晚前寒武纪地层柱中的位置，反应出了震旦系与青白口系的地史演化及生物演化间的重要关系。
The Pre-Sinian basement strata exposed in the North Kunlun Massif are Later Archean -Neoproterozoic Milan Group, Changcheng System Kaqiang Group, Jixian System Liushui Formation and Qingbaikou System Sulu Formation. 被蛇绿岩所分隔的昆北地块上出露的前震旦纪基底地层为：晚太古代-新元古代米兰岩群，长城系卡羌岩群，蓟县系流水岩组和青白口系丝路岩组。
Based on the study and correlation of sequences, the stratigraphic framework of the Qingbaikou system of the Yanshan region is set up, and the evolution of paleogeography is discussed. 在层序划分和对比基础上建立了燕山地区青白口纪的地层沉积格架并对其古地理演化进行了探讨。
I suppose you also have a caste system in your society. 我想你们的社会里也有一种等级制度。
The right to dissent is part of our political system. 有持异议的权利是我们政治体制的组成部分。
Do you know how to log in to the system? 你知道怎么登录进入这个系统吗？
Public opinion was against the old feudal system. 公众舆论反对旧的封建制度。
The system works on the principle that heat rises. 该项装置是按照热力上升的原理运转的。
The drainage system has been aged. 排水系统已经老化了。
They called for a radical reform of our tax system. 他们要求对税收制度进行根本改革。
This is a highly efficient new heating system. 这是个高效的新取暖系统。
He's mute on the subject of social system. 他对社会制度的问题保持沉默。
He said he used this system in the year dot. 他说他很久以前用过这个系统。
Our manager is conversant with account system. 我们的经理精通会计制度。
The system can translate English into Chinese. 这个系统能将英语译为汉语。
The caste system is still strong in India. 种姓制度在印度仍然很牢固。