查询词典 fossil

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。

The ancestral condition for lizards has always been assumed to be insectivorous , so this new fossil provides data that

"蜥蜴祖先所处的环境让人们一直认为它们是吃昆虫的，新化石提供的证据挑战了这个想法。"

"The ancestral condition for lizards has always been assumed to be insectivorous , so this new fossil provides data that challenges this thinking," Austin said.

"蜥蜴祖先所处的环境让人们一直认为它们是吃昆虫的，新化石提供的证据挑战了这个想法。" Austin说。

Glycerol, the by- product from transesterification, cannot be used as fuel due to its insolubility in biodiesel and fossil diesel,causing a fuel yield of only 90%.

来自酯交换反应的副产品——丙甘醇，因为它在生物柴油和矿物柴油里的不溶性导致不能被用作燃料，这使得燃料的产量只有90%。

Animal taxonomists described as a "living fossil" of the amphioxus, in the shallow water near the 15 m isobath density of 1035 / m, think about with these "living fossils" with swimming in a region, which can not but make you feel shock.

被动物分类学家誉为"活化石"的文昌鱼，在浅海15米等深线附近密度达到1035尾／平方米，想想能够与这些"活化石"同在一个区域游泳，这不能不使你感到震撼。

The 150 million-year-old fossil is a juvenile carnivorous dinosaur about 2 1/2 feet long that scientists named Juravenator, for the Jura mountains where it was found.

在德国南部发现的一具保存完好的恐龙化石日前引起了古生物学家们对动物羽毛进化过程的思考。

Resin of the kauri trees of N Zealand; found usually as a fossil; also collected for making varnishes and linoleum .

新西兰贝壳松的树脂，发现时通常为化石状，收集以制作清漆和油布。

We know that use of fossil fuels is harmful to our homeland, but we can not kick the habit.

我们知道使用化石燃料对环境有害，但我们却难以将之戒掉。

SILICEOUS FOSSIL MEALS (FOR EXAMPLE, KIESELGUHR, TRIPOLITE AND DIATOMITE) AND SIMILAR SILICEOUS EARTHS, WHETHER OR NOT CALCINED, OF AN APPARENT SPECIFIC GRAVITY OF 1 OR LESS.

硅质化石粗粉及类似的硅质土，不论是否煅烧，其表观比重不超过1

It is understood that the king crab is a living fossil of the sea, which appeared earlier than the dinosaurs.

据了 解，鲎是海中的活化石，它的出现比恐龙还要早。

What would he tell Judith and the children?

他将怎样告诉朱迪丝和孩子们呢？

I this is at that time, the opinion with peacockish true girl is full of in a heart.

这就是当时的我，一个心中布满虚荣的女孩子真实的想法。