bitumen 雅思

1.The REE patterns for bitumen is similar to those for supracrustal sedimentary rocks in areas with no basement faults but stabilized structural settings.

在基底断裂不发且构造稳定的区域原油沥青,其稀土模式具有与上地壳沉积相似的特征。

2.The auth or suggests that prebiological informational structures,gene predecessors and protoorganisms should be looked for among abiogenic ordered hydrocarbon molecul ar systems(hard bitumens).

出，应在非生物成因有序碳氢分子体系(硬沥青)中寻找前生物信息结构、基因之祖和原生有机体。