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牙形

网络thread form; Conodonts; Tooth Form

牙形

网络释义

牙形

thread form

英语单词form是什么意思，英文... ... third fundamental differential form 第三基本微分形式 thread form 牙形 threo form 苏式 ...

Conodonts

古生物地层学曾勇 - 蔚蓝网... ... 第五节被子植物( Angiosperms) 第九节牙形( Conodonts) ?第三节蕨类植物( Pteridophytes) ...

Tooth Form

美学牙医学中英及英中翻译词汇对照... ... Tooth Display 牙齿暴露 Tooth Form 牙形 Tooth Preparation 牙齿预备 ...

Thread Forming TF

紧固件常用英文及缩写-丫头农场-搜狐博客 ... 20 cone cone 锥形 22 Thread Forming TF 牙形 24 pin pin 销 ...

root form

例如牙形(root form)、圆柱形(cyclindrical)、表面有螺丝纹等。大部份品牌已经很成熟。

例句：

It might be due to the Halloween weekend , but the above reminds me of the below image . Imagine if Medusa had conodonts instead of snakes.

可能是因为周末是万圣节的关系，上面的图片让我联想到了下面的画面。想象一下，头发不是蛇而是牙形刺的美杜莎。

Conodonts first emerged around 500 million years ago and died out just as dinosaurs were beginning to take shape.

牙形刺最早出现于大约 5亿年前，就在恐龙开始登上历史舞台时灭绝了。

A Paleozoic microfossil usually having a toothlike shape and considered to BE the remains of an extinct marine organism.

牙形刺一种古生代微化石，一般有牙状形体，被认为是一种已灭绝海生生物体的残骸

Conodonts went extinct at the end of the Triassic Period , about the time dinosaurs were evolving .

牙形刺在三叠纪末期灭绝了，这正是恐龙开始演化的时代。

Conodont is an important kind of fossil in the stratigraphy research .

牙形石是一类在地层学研究中具有重要意义的古生物化石。

The discovery of new species has greatly enriched and deepened the already known concept about primitive euconodonts.

这些属种的建立丰富了对已有原始真牙形石概念的认识。

The Nashui section of Luodian, Guizhou is a good section for the study of the Pennsylvanian conodonts and the stage boundaries .

贵州罗甸纳水剖面是研究宾夕法尼亚亚系牙形刺和各阶界线的良好剖面。

One reason why conodonts have remained so enigmatic , despite the fossil finds , is that their soft bodies didn't leave much to make fossils.

牙形刺之所以仍然如此神秘，一个原因就是除了发现过它们的牙齿化石以外，它们柔软的躯体无法变成化石保存到今天。

Morphology of teeth of vibration tapping is integrated .

振动攻丝所得的螺纹的牙形完整，形状规则。

Conodonts lived in the Cambrian seas , and may have eaten certain types of plankton , but no one knows for sure .

牙形刺生活在寒武纪的海洋中，可能以某种浮游生物为食，不过没人清楚具体情况。

Conodont Stratigraphic Evidence for the Age of the Guanling Fauna , Guizhou Province, China

贵州关岭动物群时代的牙形石地层证据

Characters and geological age of conodont fauna from denominated section of Benxi Formation

本溪组命名剖面牙形刺动物群的特征及地质时代

Ordovician conodonts from Kalpin of Xinjiang and Pingliang of Gansu across the base of Upper Ordovician Series

新疆柯坪和甘肃平凉上奥陶统底部附近的牙形刺

Lower Triassic Conodont Biostratigraphical Sequence at West Pingdingshan Section, Chaohu, Anhui Province, China

安徽巢湖平顶山下三叠统牙形石生物地层序列

Geochemical characteristics of paleoseawater from the Early Ordovician of Yangtze Craton : Evidence from the trace elements in conodonts

扬子克拉通早奥陶世古海水地球化学特征：来自牙形石微量元素的证据

euconodont ; vertebrate ; dentine ; comparative histology

真牙形石脊椎动物牙本质比较组织学

牙形

牙形

thread form

Conodonts

Tooth Form

Thread Forming TF

root form

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