But there is another possibility as well , said marknorell , curator of paleontology at the american museum of naturalhistory : it is entirely possible that juravenator did have feathers , butthey simply failed to fossilize . feathers are really just difficult things to preserve , norellsaid 美国自然历史博物馆的古生物学家马克诺莱尔还提出了另外一种说法,即完全有可能juravenator的确长有羽毛,但是这些羽毛却没能形成化石。
You will drive past the great divide watershed of the american continent to arrive at mammoth hot springs to view the multi - colored lava flow from extinct volcanoes , examine fossilized trees , and catch the glimmer of beautiful lakes in the secluded woods 穿越美国大陆的分水岭,到达公园最北的mammoth hot springs ,五颜六色的梯田,温泉及滚烫的熔岩,石化的古木,碳化的火山口,林间的小湖,泛上袅袅的轻烟,宛如神话世界。
Continue with your tour of the park this morning to arrive at the mammoth hot springs to view the multi - colored lava flow from extinct volcanoes . examine fossilized trees , and catch the glimmer of beautiful lake in the secluded woods . in the afternoon , proceed to gillette 上午继续游览黄石公园,到达公园最北的mammoth hot springs ,五颜六色的梯田温泉及滚热的熔岩石化的古木,碳化的火山口,林间的小湖,泛上袅袅的轻烟,宛如神话世界。
During the pleistocene epoch the area that is now tso - chen was repeatedly covered and uncovered by the sea , and the fossilized remains of many organisms were preserved in the sediments that were laid down . today , after each heavy rain the bed of tsailiao creek is left covered with large numbers of fossils 左镇的菜寮溪流域,由于更新世时为海亲海退相互间发生的不安定环境,造成大量死亡的生物形成化石沉积,每逢豪雨冲刷,菜寮溪河床上即散布大量的古生物化石。
In the third part , great importance is attached to the inadaptability between secondary vocational education and industrial restructuring , which reflects in the following aspects : single training objective ; inappropriate course design ; out - dated auricular system ; old teaching approaches and methods ; single evaluating mode ; fossilized teaching system ; weak foundation for combination between schools and enterprises ; inadaptability between teaching staff and industrial structure 第三部分着重分析了黔江中等职业学校教育与工业结构调整的不相适应性,主要表现在:培养目标单一;专业设置不合理;课程体系陈旧;教学手段和方法滞后;评价方式单一;教学体制不灵活;培养途径单一,校企联合薄弱;教师队伍结构与工业结构不适应。