查询词典 fossil ivory

Among them fossil ichnology and sedimentology was seed as secondary topic for discussion.

四川盆地下三叠统嘉陵江组产出大量遗迹化石，为本课题研究提供了丰富的材料。

So the method of Ichnology can't use in environmental analysis correctly. A detailed study has been conducted to investigate ichnology of Jialingjiang Formation and sedimentary environment by analysized trace fossil assemblage and ichnofacies.

本人在总结前人研究成果的基础上，对该地区遗迹化石的系统古生物学做了详细研究，并利用遗迹组合、遗迹相分析等方法对沉积环境做了进一步探讨。

Four women at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, China, underscore a 19-foot (5.7-meter), 200-million-year-old ichthyosaur fossil from southern China.

侏罗纪时代图片集。四名女子在古人类学脊椎动物研究所在中国，北京，强调了19英尺（ 5.7米）， 200百万年前，鱼龙化石来自中国南部。

Photo Gallery: Jurassic Period Four women at the Institute of Vertebrate Paleontology and Paleoanthropology in Beijing, China, underscore a 19-foot (5.7-meter), 200-million-year-old ichthyosaur fossil from southern China.

侏罗纪时代图片集。四名女子在古人类学脊椎动物研究所在中国，北京，强调了19英尺（ 5.7米）， 200百万年前，鱼龙化石来自中国南部。

Kiwifruit is an immemorial plant whose leaf fossil was analyzed to have been subsisted for more than 26 million years.

猕猴桃是一种古老的植物，距今已有2600多万年的历史。

It would impose limits on emissions and force a shift from fossil fuels to renewable sources.

它将会限制碳排放并强力促成从柴油到可循环能源的转变。

According to the color index of kerogen and micro-algae fossil, it is demonstrated that thepaleotemperature of the black shale series ranges from 60℃to 110℃.

按照干酪根和微体藻类化石颜色指标，大致确定该地层的古地温为60℃～110℃。

In the early 1800's each layer of rock was given a name,an age and an index fossil.

年代早期，他为每个地层取名，设定年代以及标准化石。

The stratigraphical analyses have shown that Listracanthus appeared together with Petrodus in the same strata could be an index fossil for Upper Carboniferous.

生物地层学分析表明，这2个器官属的共生出现，可以作为判断晚石炭世地层时代的一个依据。

There are three categories of maturity indicators of organic matter in current petroleum industry to evaluate the degree of thermal evolution for source rocks, including: 1 optical indicators, i.e., vitrinite reflectance, bitumen reflectance, sporopollen color and thermal alteration index, conodont color alteration index, and reflectance of fossil fragments; 2 chemical indicators, i.e., the maximum temperature in pyrolysis of organic matter, methyl phenanthrene indicator, the atomic ratio of H/C, carbon isotope indicator, and biomarker indicators; 3 indicators of spectroscopy, i.e., the free radical concentration of kerogen, the average structural scale of aromatic nucleus of kerogen, and the laser-Raman spectrum of organic carbon.

摘 要：当前常用的有机质成熟度指标包括3大类：1 光学指标，包括镜质体反射率、沥青反射率、孢粉颜色、热变指数(thermal alteration index， TAI)、牙形石色变指数(color alteration index， CAI)和生物碎屑反射率；2 化学指标，包括有机质最大热解峰温度、甲基菲指数(methyl phenanthrene indicator， MPI)、H/C原子比值、碳同位素指标和生物标志物指标；3 谱学指标，包括干酪根的自由基浓度、干酪根芳核平均结构尺寸和有机碳激光拉曼光谱。

Given the language of section 102(2), the Supreme Court's rejection of substantive review under NEPA seems unjustifiable in principle

按照第102条的规定，最高法院否决《国家环境政策法》所规定的实质性复审在原则上似乎是不正当的。

ObjectiveTo explore the effect of variable hip abduction orthosis on children spastic cerebral palsy.

目的探讨髋关节矫形器在儿童痉挛型脑性瘫痪康复中的作用。