化石

Inland foraminifer fossils are considered as one of good indicators of marine facies.

内陆有孔虫化石群被一些学者视是海侵或残留海指相化石。

The fossils may be a million years old.

这些化石可能有100万年了。

According to the conodont and fusulinid fossils,their ages are determined to be Devonian-Permian.

根据所含化石确定地层形成时代泥盆纪至二叠纪。

Glauconite, detrital carbonate skeletal debris, marine fossils, and collophane are commonly present.

海绿石、碳酸盐骨骸碎屑、海相化石和胶磷矿普遍出现。

The geologist found many uncovered fossils in the valley.

在那山谷里,地质学家发现了许多裸露化石。

The Sciuridae from Shihuiba, a late Miocene hominoid locality at Lufeng, Yunnan Province are described.

记述了云南中新世石灰坝古猿地点发现松鼠科化石。

This is the first reliable trematothoracin sawfly discovered in China and in the Jurassic Period.

这是首次在我国发现可靠陷胸茎蜂化石，也是该亚科在侏罗纪首次报道。

They were searching for fossils.

他们在找化石。

Paleolithic period intermediate stage important anthropolite, has Ma Baren, the Changyang man, Ding Cunren and so on.

旧石器时代中期重要人类化石，有马坝人、长阳 人、丁村人等。

To avoid sampling bias, they restricted their analysis to one group of animals—the bivalve molluscs—that fossilise well.

了防止取样偏颇，他们将分析对象限制在一类化石记录保存完备动物——双壳类软体动物。

Experimental results showed that double coats of carbon and gold on the conductive coating of radiolarite should be used.

通过多次试验，认虫化石表面导电处理应采用碳-金双层镀膜法。

The thorax and pleon bear a number of lateral appendages, including the gills, and the tail ends with a telson.

另一个古老特征是甲壳亚门动物分叉足，这样足在化石中三叶虫就已经有了。

With the mixture tests design, the interaction mechanism of borate, chlorinated paraffin and zinc dialkyldi thiophosphate (ZDDP) additives is studied.

用混料试验设计方法,研究了硼酸酯、氯化石蜡和二烷基二硫代磷酸锌(ZDDP)相互作用机理。

The total sedimentation was that rivers were branching and migrating frequently,and the sedimentary structures and fossil of ichnite were growing generally.

其总体沉积特征:河道频繁分支与迁移,发育各种沉积构造及生物遗迹化石。

In the summer of 2003 we began to zero in on one microfossil type whose complex morphological characteristics particularly intrigued us.

2003年夏天，我们开始瞄准一种微化石类型，其复杂形态特徵特别引起我们兴趣。

Based on the U-series dating of intercalated speleothem formations, the chronology of several hominid sites in southern China has been studied.

本文对采自云南呈贡龙潭山1号洞和广西土博咁前洞期智人遗址动物化石和洞穴次生碳酸岩样品进行了铀系年代测定。

In the pale light of the tunnel, 30-foot fossil traces of lycopsid gleam slickly in the shale roof like alligator skins.

它们看起来像一棵棵巨型芦笋。在隧道内黯淡灯光下，页岩顶部30英尺长石松化石遗迹就像鳄鱼皮般发出柔滑光亮。

Abstract : Wollemia nobilis is a monotypic genus in Araucariaceae and one of the oldest living fossil plants in the earth.

摘要 ： 瓦勒迈松是南洋杉科单型属植物，是目前地球上最古老“活化石”植物之一。

In this paper the sample preparation techniques of radiolarite were discussed in order to get high quality secondary electron images in SEM.

讨论了获得虫化石高质量二次电子图像所采用试样制备方法。

This hangs the corner tower , the warped angle of larmier , three has a corridor , hanging out the xylon balustrade.

这类吊脚楼比“栏干”较成功地摆脱了原始性，具有较高文化层次，被称巴楚文化“活化石”。