古生代的

Our factory has rich mineral resources of silicon, Orebody disk belonging to the Late Paleozoic mud line vault Coastal Stream Group - neritic facies sedimentary deposit.

我厂拥有丰富的硅矿资源，矿体属于晚古生代泥盘系跳马涧组滨海——浅海相沉积矿床。

After detail field inspecting, combined with the deep indoor research result, the author regarded that those deposits, which districted in West Kunlun Mountain Region , are belong to Mississippi Valley Type Lead-Zinc deposits.

本文运用区域成矿学理论从沉积建造、岩浆活动、构造演化以及区域地球物理场和地球化学场特征等方面系统地阐述了西昆仑地区（特别是奥依塔格—库尔良晚古生代裂陷盆地）的成矿地质条件。

The purpose of the present paper is to study the sedimentary character of the coal-bearing strata and the genesis of the kaolin rocks during late Paleozoic era.

本论文主要研究了山西省境内太原以北晚古生代煤系地层沉积特征及高岭岩的成因。

The structural evolution of Tarim basin can be divided into two major periods, the Paleozoic craton basin evolution and the Mesozoic-Cenozoic foreland basin evolution.

塔里木盆地的构造演化总体可以划分为两大阶段，即古生代克拉通盆地演化阶段和中、新生代前陆盆地演化阶段。

The ore-forming ages of the epithermal gold deposits in northern Xinjiang are in the range of 340~244 Ma, corresponding to the large-scale volcanic-subvolcanic activities at (350±10) Ma,(300±10) Ma and (250±10) Ma.

金矿成矿时代在340~244 Ma之间，金矿在时间和空间上与新疆古生代在(350±10) Ma、(300±10) Ma和(250±10) Ma 3个阶段的大规模火山－潜火山活动有密切关系。

The epithermal gold deposits in northern Xinjiang can be divided into high-sulfidation and low-sulfidation types, with the latter being the main type.

文章在总结前人研究成果的基础上，提出新疆北部古生代浅成低温热液型金矿床可以划分为高硫型和低硫型两大类，以后一种为主。

Heavy-bodied reptile with a dorsal sail or crest; of the late ''.

有背鳍和头冠、体重的爬行动物；产于晚古生代。

Heavy-bodied reptile with a dorsal sail or crest; of the late Paleozoic .

有背鳍和头冠、体重的爬行动物；产于晚古生代。

Based on study of Paleozoic carbonate reservoir rock in the Tarim Basin ,it is discussed in this paper reservoir rock type,reservoir room type,reservoir capacity and carbonate rock diagenesis.

通过对塔里木盆地古生代碳酸盐岩储集岩的勘探和研究，较系统地阐述了储集岩类型、储集空间类型、储集性能以及碳酸盐岩成岩作用等，并进行了评价。

The coal geological conditions in China, which is largely controlled by the plate tectonic evolution of Eastern Asia from Late Palaeozoic to present, are more complex than those of the United States, India, Australia, Germany, Canada, South Africa, as well as the Moscow outskirts coalfield in Russia and the Lublin coalfield in Poland.

受东亚晚古生代以来板块构造演化影响，我国煤田的地质条件，比美国、印度、澳大利亚、德国、南非、加拿大、俄罗斯近郊煤田和波兰卢布林煤田复杂得多。

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。