
好词典

源自英国德文郡(Devon)的拉丁语名称'Devonia',地质学术语因该地区典型的地层剖面而得名。
❶ 指地质年代中泥盆纪的,距今约4.19亿至3.59亿年前,以鱼类繁盛和陆地植物首次大规模出现为特征。
“Devonian rocks often contain fossils of early fish.”
(泥盆纪岩石中常含有早期鱼类的化石。)
“The Devonian period is known as the 'Age of Fishes'.”
(泥盆纪被称为'鱼类时代'。)
❶ 指英国德文郡(Devon)的居民或与德文郡相关的事物。
“The Devonian dialect has some unique characteristics.”
(德文郡方言具有一些独特特征。)
“Devonian farmers are known for their dairy production.”
(德文郡农民以乳制品生产闻名。)
Devonian system — 地质学术语,指泥盆纪时期形成的地层系统,包含特定类型的岩石和化石。
“The Devonian system in this region contains rich oil deposits.”
(该地区的泥盆系含有丰富的石油储藏。)
Devonian shale — 指形成于泥盆纪的页岩,常含有天然气资源,是重要的能源开采目标。
“Hydraulic fracturing is often used to extract gas from Devonian shale.”
(水力压裂法常被用于从泥盆纪页岩中提取天然气。)