Carbon dating provides the archaeologist with a basic chronological framework.

碳元素年代测定法给考古学家提供了基本的年代框架。

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 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控制等部分组成。

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。

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

第三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、机械执行机构三个方面的设计。

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“前三叶虫统”和3个“三叶虫优势统”，反映了寒武纪生命发展的主要阶段。

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、牙周疾患等问题。

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。