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- The Devonian Period or its system of deposits. 泥盆纪(系)或泥盆纪(系)的沉积矿系体系
- The Devonian coal in Luquan,Yunnan Province,is a typical liptobiolite in China. 禄劝煤是我国典型的残植煤,是泥盆系煤岩的代表。
- During the Devonian, 410 million years ago, two major animal groups dominated the land. 在泥盆纪期间,410百万年前,二个主要动物小组控制了土地。
- The sequence of the strata may be correlated with the Devonian period Bulakebashi Formation in west section of East Kunlun. 该套地层可与东昆仑西段泥盆纪布拉克巴什组相对比。
- SUBDIVISION, ZONATION AND CORRELATION OF THE DEVONIAN FORMATIONS IN LUNGMENSHAN AREA, NORTHWESTERN SZECHUAN. 四川龙门山区泥盆纪地层分层分带及其对比
- The Ellsworth basin lay between the epicontinental basin and the marginal magmatic arc during the Devonian. 除了上述两个沉积盆地外,在罗斯海两边却出露了火山岩,说明该地当时处于俯冲带附近的火山弧中。
- Laminated siliceous rocks in country rocks might represent the nature of the Devonian hydrothermal sedimentary rocks. 围岩中的层纹状硅质岩可能代表了泥盆纪时期的热水沉积岩性质。
- It is a new species of placoderm, the type of armour-plated fish that dominated the Devonian oceans for 70m years. 它是盾皮鱼中的新种类。盾皮鱼身上覆有盔甲,统治泥盆纪海洋达7000万年。
- Siliceous, phosphorus and organic carbon-rich deposits of the Devonian indicate the upwelling flow's influence. 台沟和钦防裂陷海槽以厌氧相与准厌氧相为主。
- The allochthon consists of the Presinian,Sinian and Cambrian system.The autochthon comprises the Devonian and Carboniferous system. 推覆构造的外来系统为前震旦系、震旦系和寒武系,原地系统为泥盆系和石炭系。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- In Puan-Qianchang of Guizhou Province, the middle and late Devonian sedimentary rocks were mainly developed during the Devonian Period. 贵州普安铅厂泥盆纪主要发育中晚泥盆世的地层。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- This paper analysed the carbon and oxygen isotope composition of brachiopods fossils from the Devonian Period in Sichuan Province. 本论文对来自四川龙门山泥盆纪的腕足化石进行碳、氧同位素分析。
- Foreign nationals were asked to leave the country. 外国侨民被要求离开该国。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- In the Luquan-Wuding region of the north domain, the Ordovician is complete, and is unconformably overlain by the Devonian. 北侧的禄劝-武定一带,下古生界的沈积序列与之相反,有完整的奥陶纪沈积组合,上于泥盆系假整合,其间无志留纪的沈积。
- A country must have the will to repel any invader. 一个国家得有决心击退任何入侵者。
- Swimming is the best way to tone up your body. 游泳是健体强身的最好方法。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries