蛋白物的生存取决于骨骼形成化石的方式。
The survival of the proteins depends on the way in which bones are fossilized.
鼻部的组织和软骨结构太软，无法形成化石。
The tissue and cartilage of a nose are too soft to fossilize.
在这重要的一亿年的周期内缺乏化石（记录），关于这一点，有一种解释是早期的动物是软体动物，所以它们无法形成化石。
One interpretation regarding the absence of fossils during this important 100-million-year period is that early animals were soft bodied and simply did not fossilize.
科学家曾相信：是不能形成化合物的。
That could not FORM chemical compounds was once believed by scientists.
䜨科学家曾相信：氙气是不能形成化合物的。
That xenon could not form chemical compounds was once believed by scientists.
科技家曾相信：氙气是无所不能形成化合物的。
That xenon have to not FORM chemical compounds were once believed by scientists.
形成化学浓度梯度，告诉干细胞如何以及向哪儿发育。
This sets up a chemical concentration gradient that tells stem cells how and where to develop.
并在表面形成化合物，减轻了材料表面铁元素的氧化；
Titanium ion implantation formed compounds and alleviated the oxidation of the ferric element in the surface layer.
当两种或两种以上的元素化合形成化合物时，发生化学变化。
When two or more elements combine and form a compound, a chemical change takes place.
但是，钛属于生物惰性材料，不能与骨组织形成化学键合或称骨键合。
However, titanium cannot bone-bond with bone tissue and was thought to be bioinnert.
只有外层内的电子才会形成化学键，因此每一列中各元素化学性质均相似。
Only electrons in the outer shell can form chemical bonds, so the elements in each column are chemically similar.
单体分子的基本特性是至少能与两个其它单体分子形成化学键的能力(多功能性)。
The essential feature of monomer molecules is the ability to form chemical bonds (see bonding) with at least two other monomer molecules (polyfunctionality).
电极和分子尺寸之间的距离，至少在分子两端通过电极形成化学接触时，是不重要的。
The distance between electrodes and the size of molecules are less important, at least when both sides of the molecule form chemical contact with the electrodes.
据文献报道，中间过渡层可以对HAP涂层和金属基体之间形成化学骨连结产生重要影响。
It has been reported that an intermediate layer can have significant impact on the chemical bonding between a HAP coating and a metallic substrate.
甲壳素和壳聚糖通过其羟基，氨基形成化学键吸附有机物或作为聚阳离子型电解质絮凝有机物。
Chitin and chitosan can adsorb organic compounds by forming chemical bond or flocculate organic compounds as a cationic polyelectrolyte.
在这些情况下氮不会是可用的对于同其他元素结合，为了形成化合物和形成生命的建筑模块的链条。
Under these conditions the nitrogen would not be available to bond with other elements in order to form the compounds and chains that form the building blocks of life.
用于碳酸钙改性剂，作用点多，与碳酸钙形成化学作用，改性效果显著且优于传统硬脂酸类改性剂。
The calcium carbonate modifier has more action points and can chemically react with calcium carbonate, thereby having better effect than the traditional stearic acid modifier.
侗族人通过鼓楼这个高度形成化的建筑，将自己的宇宙论与人文论的文化诉求作出了诗性的叙述与表达。
Through the highly visualized building the Dong people make poetic and descriptive explanation of the pray of their cosmism and humanism.
更好的是，研究者称这些保存在外骨骼内的组织残骸可以解决长久以来令人困惑的关于从原始材料如何形成化石的问题。
Better yet, researchers say these remains help solve the long-standing mystery about how such materials can become fossilized in the first place.
此外，还对地层沉积与埋藏环境进行了初步分析，认为这一大型霸王龙类接近原地在河流心滩处被埋藏、进而逐渐形成化石。
Moreover, the analyses of sedimentary and taphonomic environments reveal that the large tyrannosauroid was preserved in situ and buried in diara deposits.
除了对粘接剂的研究外，纤维桩表面处理是增强界面粘接强度的常用方法之一，它可以促进不同成分之间形成化学和机械固位。
Nowadays, the research focuses on the adhesion and retention of fiber posts. Besides the research on cement, surface treatment is widely studied to enhance the interfacial bond strength.
尽管过去的几个世纪里，我们对恐龙类有比较深入的研究，可是古生物学家仍对它们的呼吸状态知之甚少，因为肺无法形成化石保存至今。
As well-studied as dinosaurs have been over the past couple of centuries, paleontologists have learned little about their breathing, because lungs do not fossilize.
通过红外测试进行防腐药剂与木材复合机理的研究，得知防腐药剂teb并未与试样木材内成分形成化学结合，而IPBC则可能与木材内羟基形成氢键。
Whether TEB or IPBC, its leachability resistance is good. FTIR analysis showed that chemical function between wood and TEB is not formed but hydrogen bond between wood and IPBC will probably form.
通过这七个子系统，把企业内部以及节点企业之间的各种业务看作一个整体功能过程，形成了集成化供应链物流管理体系。
By the seven subsystems, businesses in and outside the enterprise form an overall organic function and thus an integrated logistics management system under supply chain comes into the world.
由方解石制成的显微骨架板，保护某些海洋浮游植物，而且它在变成化石状态时形成白垩和石灰石沉积物。
A microscopic skeletal plate made of calcite that protects certain Marine phytoplankton and which, in a fossilized state, forms chalk and limestone deposits.
与改进BP算法相结合，各取所长，形成集成化动态递归神经网络建模辨识算法。
The identification algorithm integrating the forward evolutionary algorithm and improved BP algorithm for the dynamic recursive neural network model is formed.
键的立体选择性形成是有机合成化学的重要方面。
The stereoselective formation of c-c bonds is a central aspect of organic synthetic chemistry.
形成上下游集成化、协同化的双赢战略，持续进步建筑智能化总包企业的核心竞争力。
Formed on the lower reaches of integration, synergy and win-win strategy, the continuing improve the overall architecture of intelligent packet core competence of enterprises.
形成上下游集成化、协同化的双赢战略，持续进步建筑智能化总包企业的核心竞争力。
Formed on the lower reaches of integration, synergy and win-win strategy, the continuing improve the overall architecture of intelligent packet core competence of enterprises.
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