化石

In addition, after conducting chemical composition analysis of these fossils, paleontologists have discovered that contents of rare metals found in duck-billed dinosaur fossils and contents in deeper strata exist significant differences.

除此之外，古生物学家们在对这些化石的化学成分进行分析后发现，存在于鸭嘴龙化石中的稀有金属的含量与更深层地层中的含量存在着明显差异。

The stratum is 500 meters long, 26 meters deep and more than 7,000 dinosaur fossils were initially discovered there. According to the fossils at least 10 species of dinosaurs, including duck-billed dinosaurs, horned dinosaurs, tyrannosaurus, ankylosaur, coelurosaur and so on once lived here.

由中国科学院古脊椎动物与古人类研究所与诸城市联合组建的科考队，在山东省诸城市库沟村恐龙涧发掘出一条长500米，深26米的恐龙化石长廊，发现恐龙化石7000多块，包括大型鸭嘴龙、角龙、暴龙、甲龙、虚骨龙等至少10个恐龙属种。

Annual supply, demand, profit and loss of EF (1995-2005) for Tianjin were calculated based on MEFM. Per capita Ecological Footprint of arable land, pastureland, forest land, water area and fossil-energy land were 0.0009,-0.3224,-0.1991, 0.0255,-1.9600 hm^2cap^(-1) respectively. The deficit of PEF for pastureland, forest land and fossil-energy land increased annually except that the PEF for forest land and water area increased a little. During the period of 1995-2005, higher energy consumption of per unit production, accretions of population and built-up area were the main factors to the increasing of PEF deficit for Tianjin.

利用改进后的生态足迹模型计算天津市1995-2005年的生态足迹及其动态变化值，天津市耕地、牧草地、林地、水域和化石能源用地人均生态足迹盈亏分别为0.0009，-0.3224，-0.1991，0.0255，-1.9600hm^2人^(-1)，除耕地和水域略有盈余外，牧草地、林地和化石能源用地人均生态赤字均呈递增趋势。1995-2005年间天津市单位产值能耗居高不下、人口规模增长与建筑用地扩张是导致人均生态赤字扩大的根本原因。

Trace fossils that are older than known animal fossils may have been formed by large unicellular organisms such as amoebas.

遗迹化石要比动物化石古老，它们可能是由大量单细胞生物形成的，比如：变形虫。

The cladistic analysis showed that the fossil species of Acer much diversified in morphology and may be at different evolutional levels, even some species have evolved into comparative levels with certain extant Acer species.

对其所做的分支分析表明：7个化石种具有形态上的多样性，处于不同的演化水平，某些化石种已经具有与现生槭属相当的进化水平。

There are plant stems in the middle of the concretions. The contents of fossils such as crinoids, bivalves, ammonoids and conodonts in the concretions are notably higher than those in rocks around the concretions. Many fossils are directly attached to the plant stems.

这些结核中部都有植物茎干，结核内的海百合、双壳、菊石、牙形刺等生物化石含量明显高于结核周围的岩石，且有许多生物化石直接附着在植物茎干上。

The team had examined 14 coprolites, as fossil faeces are termed by polite scientists.

在这之前，他们对14份粪化石（即文雅的科学家们称之为化石糟粕的东东）进行了研究。

Eriksson told the newspaper they examined the level of phosphorus of the samples and that "we realized pretty soon that it could not be anything other than coprolites, in other words fossilized dung."

埃利克森告诉当地媒体说，他们检验了粪便样本中的磷含量水平。&我们马上意识到它可能不是别的什么，正是一块粪化石，换句话说就是变成化石的粪便。&

It is necessary to discuss about the climatic environmental and ecological backgrounds, which were suitable for animal fauna and plant developments and why and how the fauna extincted abruptly in an independent regional climate change frame.

以独立的气候环境变化和化石动物的年代序列为参照系，在区域环境变化的框架内讨论化石动物群生存的气候环境、生态特征和灭绝过程，进而探讨动物群演化及灭绝与气候环境变化的关系。

It would have looked similar in life to the fleet-footed predators that menaced a young girl on the beach during the opening scene of "The Lost World," the second Jurassic Park movie.

据美联社3月15日报道，这具有1.5亿年历史的化石是一只大约2.5英尺长的幼年食肉恐龙留下来的，因为发现化石的地点位于侏罗山，因此科学家们称它为Juravenator。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐