Carbon dating provides the archaeologist with a basic chronological framework.

碳元素年代测定法给考古学了基本的年代框架。

Reefy boundstone or framework commonly contains large cavities formed through rapid organic growth.

礁块的粘结岩成骨架中通常有大洞，是由于生物快速生成形成的。

The investigation showed that after modified PET could be used in electronic junctor, coiler framework, igniting parts.

结果表明,通过适当的改性,PET材料可用来生产电子连接器、线圈骨架、点火元件电子、电气元器件。

This is because thin nasal skin has a high capacity to contract and redrape over the sculpted framework.

这是因为在改造过的支架结构上薄皮肤更轻易收缩和重新下垂。

The machine mainly includes electromotor framework, dibbling mechanism, sowing mechanism, powered mechanism, pneumatic electric and PLC control panel.

该机主要由电动机、机架、打洞装置、播种装置、传动机构、气动、电气及PLC控制部分组成。

Chapter Three gives design of machine of washing-system .researches drive, steel framework and executing-part, according to mechlorethamine design rule.

第章结合机电系统设计理论对内燃机车清洗机的机械系统进行研究并完成了机体结构、动力源、机械执行机构个方面的设计。

Adopt Coactive value-based product development initiative as the framework for advancing products from initial customer enquiry through to mass production.

用特定的方法和技巧进行计划、执行、控制所有的新项目。

The stressed skin diaphragm is a structural system that considers profiled sheet of roof and metope working together with framework and purline.

受力蒙皮是考虑房屋屋面、墙面的压型钢板与框架、檩条进行可靠连接而共同工作的结构体系。

The new framework, comprising a pre-trilobite series and three trilobite-dominated series, reflects the major evolutional stages of the life on Earth during Cambrian Period.

新的划分方案包括1个“前统”和3个“优势统”，反映了寒武纪生命发展的主要阶段。

The photoabsorption spectra in the valence-shell continuum region of C2H4 are calculated by the multi-scattering self-consistent-field method in the framework of the quantum defect theory.

摘要在量子数亏损框架下，利用多重散射自洽方法计算了C2H4价壳层电离连续区光吸收谱。

In this paper, ACO algorithm is reviewed by and large.Firstly, the corresponding principle of biont and the implementing framework for ACO algorithm are introduced simply.

摘要本文首先简要地介绍蚁群优化算法的来源、对应的生物原理和算法实现的框架。

It was proved that custom designed framework could solve the clinical dilemma of severe dentition attrition, food impaction and periodontitis, and the odontoptosis was repaired.

采用义齿个别设计铸造支架式可摘局部义齿修复各类缺牙，可较好地解决牙列重度磨耗、食物嵌塞、牙周疾患问题。

In the framework of quarkonia-quarkonia mixing, considering the effect of the flavor-dependent transitions between quarkonia, the new mass relation of a meson nonet is presented.

摘要在介子-介子混合的框架下，考虑到夸克偶素间的湮灭跟味道有关这种效应，给出了一种新的介子九重态成员间的质量关系。

In the framework of Geoacoustics interface wave theory,a time domain finite difference model for the propagation of interface wave in shallow sea has been developed.

根据地声界面波的相关理论,采用时域有限差分法建立浅海沉积层中界面波传播模型。

The framework of knowledge agent, knowledge and knowledge sharing scenario in the model is proposed and designed in detail respectively.Domain of enumerable attributes is also discussed.

对模型中的知识主体、知识和知识共享情景3个主要对象设计了相应的基本框架,并分析了可枚举属性的值域。