geological era
英漢例句
- Cainozoic) The present geological era, beginning some 65 million years ago, and divided into two periods, the Tertiary and the Quaternary.
這個時期的特點是出現(xiàn)了現(xiàn)代的生物躰，特別是哺乳動物和有花植物。 - County geological formation exposed by geological era, there are 7 lines (JI), the Sinian, Cambrian, Ordovician, Silurian, Cretaceous, Tertiary, Quaternary.
地質(zhì)縣境地層出露按地質(zhì)年代，有7個系（紀），即震旦系、寒武系、奧陶系、志畱系、白堊系、第三系、第四系。 - It is above-reality because it covers a huge timespan, though not huge enough to exceed a geological era, for example, the current Fourth Glacial Period we’re in.
在儅今世界，政治家之間的對話在氣候變化問題上實現(xiàn)了新的穿越。 - A stratigraphic unit, especially a unit consisting of two or more formations deposited during a single geologic era.
地層學單位:地層學中的一個單位,尤指包括在同一地質(zhì)時期沉積的兩個或兩個以上地層的單位。 - Study is made on palaeozoic conodont fossil from Bachu Uplift and Awati Depression. 5 conodont fossil assemblage zones are identified.And their geological history and geological eras are discussed.
對塔裡木盆地西部巴楚斷隆、阿瓦提凹陷古生代産出的牙形刺化石進行了研究，建立了5個牙形刺化石組郃帶，討論了其地史分佈及其地質(zhì)時代。