化石

These fossils not only enrich the content of the plant fossil assemblage in the study area but also provide an important paleontological basis for the determination of stratigraphic ages, stratigraph...

这些化石不仅丰富了本区植物化石组合内容，而且对地层时代的确定及与邻区的对比和沉积环境的恢复提供了重要的古生物依据。

On the basis of pollen analysis of surface sample in North China, polynomial function analysis method was applied to establish pollen climate response surface of Pinus, Betula, Quercus, Artemisia, Chenopodiaceae, Compositae, Picea, Ephedra, Gramineae in North China, therefore an easy and applicable method for reconstructing palaeoclimate and palaeoenvironment with data of fossil pollen was founded; Multi-analysis method was applied to analyse the principal elements of surface sample pollen in central Inner Mongolia Steppe, the assemblages of surface sample pollen in steppe area and its relationship with vegetation type were discussed with helps from spore-pollen analysis of a peat section in Chasuqi, Inner Mongolia and 〓C chronometer, fossil pollen data were obtained with high resolution on the peat section in Chasuqi. Vegetation succession and environmental changes since Holocene at resolution of 70 years were primarily reconstructed in south Mount Daqingshan and Plain Tumete. The changes in the area were copmared with those in the neighbouring areas during the same period. It was found that Holocene environmental change had undergone the following stages: cold-arid, temperate-wet, warm-wet, temperate-arid and cold-arid, and the climatical optimum period occurred in 5000-4100 aB.

本文在对中国北方表土花粉研究的基础上，采用多项式函数回归方法建造了中国北方松属、桦属、栎属、蒿属、藜科、菊科、云杉属、麻黄属、禾本科等的花粉——气候趋势面，从而为利用化石花粉资料直接恢复古气候、古环境提供了一种方便易行的方法；采用多元分析方法对内蒙古中部草原区表土花粉进行了主成分分析，探讨了草原区表土花粉组合的规律及与植被类型的关系；本文还应用孢粉分析方法，结合〓C测年技术，通过内蒙古中部察素齐泥炭剖面高分辨率的化石花粉数据，初步恢复了大青山山地南部及土默特平原地区分辨率为70年的全新世以来植被演替和环境变迁的状况，并与邻近地区的全新世古气候、古环境进行了对比研究，研究发现，本区域全新世古环境的变迁序列基本上可以与周围地区及华北地区进行对比，其环境变迁经历了凉干～温湿～暖湿～温干～凉干的变化，且气候最适宜期出现在5000～4100aB.P。

The emergence of early pteridophyte was traced back more than 400 million years ago, but many taxa lacked fossil records.

化石记录表明蕨类植物最早出现于大约4亿多年前，但大部分现代真蕨类缺少足够的化石证据。

This is because the formation kept walking in the land is rich in dinosaur fossils, and pterosaur fossils are very scarce and rare, in our country are scarce and rare.

这是因为地层中保存的行走在陆地的恐龙化石十分丰富，而翼龙化石却格外贫乏和稀少，在我国更是稀缺和罕见。

See purple-red sandstone layers in the fossil pieces retained, Dong initially that this is pterosaur fossil.

看到那层紫红色砂岩中留存的化石残片，董枝明初步认定这是翼龙化石。

Finding such a complete sauropod skeleton is extremely rare, and the new fossil may help scientists piece together the early evolution of the long-necked giants.

保存如此完好的蜥脚类恐龙的骨骼化石非常少见，科学家们希望通过研究这些新发现的化石，来解释这些拥有长长颈部的巨大生物的早期进化秘密。

One is that the range of sound that the camera could collect and the other is that the camera would record all the sounds in the range.

化石及地层的关系有讲到一个人说他早在那时就认为化石是很重要的还有说可以根据地层来Dating 5。

We report a sponge spicule assemblage from the Lower Cambrian black shales of the Hetang Formation at Xiuning in Anhui Province, South China. Based on morphological differences, the spicules can be divided into 4 types including monaxons, biaxons, triaxons and tetraxons.

本文报道皖南休宁县早寒武世荷塘组黑色页岩中产出的海绵骨针化石组合，这些海绵骨针化石具有较高的丰度和分异度，它们以二轴四射针、T型针、三轴六射针和三轴五射针为主。

It indicates that theXiananshan flora belongs to a transitional type from subtropic to tropic vegetation.A close correlation is established between trichome base density of modern L. formosanaand climatic parameters. The trichome base density of fossil L. miosinica is ca. 10 cm~(-2,indicating that the late Miocene climate in Tiantai is similar to that in nowaday Guangzhou.

现生和化石枫香的角质层上都含有表皮毛／毛基，利用不同地区间现生枫香叶片上表皮毛的变化建立毛基密度(个／cm~2)与气候参数的关系，根据化石枫香的毛基密度(约10个／cm~2)指示了天台晚中新世的气候与现在广州相似。

Tea seed petrifaction found in Guizhou,be taken for "Cenozoic the third age four ball tea,tea seed petrifaction which is one million years till now " The early of 21th century, excavated a tea seed near Zhejiang Hangzhou, which is 8000 years ago,though we canot get a decision that ancestor has begun to drink tea according this, at least, we can guess that it is quite possbile that there begin to grow wild tea plant near Hangzhou at that time.

贵州发现的茶籽化石，初步认为是"距今一百万年的新生代早第三纪四球茶茶籽化石"；21世纪初，浙江杭州附近出土的一颗8000年前的茶树籽，虽然我们并不能由此得出先民们已经开始饮茶的推论，至少我们可以推测，很有可能，那时候，杭州附近已经生长着野生茶树。

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