介形虫是小型动物,其中大部份都具有两瓣的外壳。 6. The Division and Comparison about Sanmen Formation and the Research on Ostracodes in Songjiabeigou, Weinan, Shannxi; 陕西渭南宋家北沟三门组的划分对比及介形虫研究 7. Ningbo Formation has long been considered to belong to a terrestrial one, but re...
介形虫 1. Stable-isotopic analyses of 27ostracodasamples from oil source rocks in Dongying depression (Bohai Gulf basin, East China) have been carried out. 对山东东营凹陷沙河街组一段 2 7个生油岩样品中的介形虫进行了氧、碳同位素分析 ,其δ( 18O)全为负值 ,δ( 13C)多为正值 ,两者之间有明显的...
1. The emphasis of this study is put on charateris-tics of Tertiary ostracod faunas and their geological significance. 研究的重点是第三纪介形虫动物群特征及其地质意义。更多例句>> 2) ostracod [英]['ɔstrə,kɔd] [美]['ɑstrə,kɑd] 介形动物3) shell fauna 介壳动物群...
介形虫是小型动物,其中大部份都具有两瓣的外壳。 4. Amoebas are rhizopods. 变形虫是根足类的动物。 5. Ningbo Formation has long been considered to belong to a terrestrial one, but recently a large number of foraminiferal, ostracoda and mollusca fossils have been discovered in it. 在以往一直认...
介形虫壳体 1) ostracoda shell 介形虫壳体 1. The climatic and environmental history in the last 1 500 years was reconstructed by analyzing environmental proxies, such as δ 18 O and δ 13 C inostracoda shell, δ 13 C of organic matter, etc....