Doctors Stevenson is analyzing one element—carbon-14 in ring from both living and dead trees.
史蒂文森博士正在分析一种元素——活树和死树年轮中的碳-14。
Ring compounds in which one or more of the carbon atoms in the ring are replaced by an atom of another element such as nitrogen, sulfur or oxygen.
为环状构造的化合物，环中一个或多个碳原子被另一元素的一个原子（诸如氮、硫、或氧）所取代。
Some believe the wedding ring was the first element of wedding traditions.
结婚戒指是种象征。有的人认为结婚戒指是传统婚礼的首要元素。
The device is mainly made up of inner tube, outer tube, piston tube, end cover, retaining ring, hanger, liquid-route element and sealing element.
该装置主体由内管、外管、活塞管、端盖、承压环、吊耳、液路元件和密封元件等组成。
Meta-learning ability is a comprehensive ability and self-moni to ring ability is the prominent element of it.
元学习能力是一种综合能力，自我监控能力是其中突出的因素。
An elastomer or adhesive ring filling the recess is arranged between the closing element and the recess for the positioning of the cap.
当装上帽盖时，一个弹性体环或粘合剂环设置在封闭元件与凹陷之间，该弹性体环或粘合剂环填满所述凹陷。
Three rolling schedules were selected, dynamic simulations on the preloaded housing of cold ring rolling mill were proceeded with 3d finite element method, the results were compared.
选取3种轧制规程，用三维有限单元法对预紧机架进行了动力仿真，并进行了分析和比较。
Based on the reduced scale ring rolling and finite element simulation materials axial transferring pattern was studied and a formability evaluation method was proposed including the shape factor.
摘要研究了大型复杂环件形状因素和轧制速率对成形性能的影响规律。
A new optical element called Glass Ring is introduced in this paper. It can transform laser beam into a laser beam plane.
介绍一种新型的光学元件，它可把一束激光变换成一个两维的激光平面。
The segment(s) and optionally the element, are preferably in an annular array to form a ring, necklace and the like and may be of the same or different configurations.
所述段和任选的单元件优选以环形排列以构成戒指、项链等，并可具有相同或不同的结构。
The strain force transducer made of elastic steel ring and the fabricating technique are introduced. The elastic characteristic of the elastic element has been improved by heat treatment.
介绍了由弹性钢环制成的应变式力传感器及其制作工艺，特别是弹性元件经过热处理后改善了弹性特性。
The pressure distribution on the surface of interference fit of retaining ring and rotor body is calculated by both finite element method and analytical method.
本文采用有限元数值方法和理论解析方法，对护环与转子本体配合面上的压力分布做了分析计算。
Optimization of corona ring design for EHV composite insulator using finite element and neural network method.
基于有限元和神经网络方法对超高压合成绝缘子均压环结构优化的研究。
In the numerical analysis of axially symmetry electromagnetic field, the finite element method using ring unit with rectangular cross-section has more advantages than other methods.
在具有轴对称特性电磁场的数值分析中，用矩形截面环单元分析具有比其他单元更多的优点。
The temperature and stress fields of a ring structure laser welding are simulated by finite element method (FEM).
对铍环激光束钎焊过程的温度场和应力场进行了有限元模拟。
Moreover, three-dimensional finite element model is set up to simulate the arch ring, and the measures relevant are also raised.
同时，利用空间三维有限元子域法对拱圈建立起模型，并给出相应的解决步骤。
Research was conducted into the optimization design of stay ring structure of the bulb tubular turbine based on the analysis of finite element.
邢伟在有限元分析的基础上，对贯流式水轮机座环结构进行了优化设计研究。
First, the paper presents the simulation of ring rolling processes by rigid-viscoplastic dynamic finite element method and the H-RING code.
采用刚粘塑性动力有限元模拟环轧动态过程，获得轧制过程中的分布量计算结果。
The finite element model of rubber dynamic auxiliary seal ring which was installed on the pusher type mechanical seal was established.
建立了滑移式机械密封装置上动态辅助橡胶密封圈的有限元模型；
The last, a strength evaluation of the big gear ring was obtained by the theory of the finite element analysis.
最后应用有限元计算理论给出了大齿圈的强度评价。
In this paper, the rigid plastic finite element method is applied to analyze ring compression and the results are compared with those of the upper-bound method and experiments.
本文采用刚塑性有限元法分析圆环压缩，并与上限法分析和试验结果进行比较。
Based on the reduced scale ring rolling and finite element simulation, materials axial transferring pattern was studied and a formability evaluation method was proposed including the shape factor.
研究了大型复杂环件形状因素和轧制速率对成形性能的影响规律。
On the basis of finite element analysis, 5 concrete columns were made to carry on the experimental study about the measurement of working stress of concrete by the ring-hole method.
本文是在有限元模拟分析基础上，制作5根混凝土柱，进行环孔法测试混凝土工作应力的试验研究。
The parametric finite element model (FEM) of wedged-ring joint structure was established using ANSYS parametric design language (APDL).
利用APDL语言对ANSYS软件进行二次开发，建立楔环连接结构的参数化有限元模型。
The effect V-ring indenter on the sheared surface in the fine blanking of shifting fort is investigated by means of finite element method.
使用有限元分析法对拨叉零件的精冲过程中V形齿圈对冲剪面的影响进行了研究。
As an ideal electromagnetic element, the carbon nanotube ring (CNTR) has attracted much interest ever since its discovery.
作为理想的电磁元器件，碳纳米管环引起了人们的特别的注意。
The rings are married or engaged to the traditions of many peoples, England held in the church wedding ceremony, the bride and groom to wear a ring is indispensable one important element.
结婚或定婚戒指是许多民族的传统习俗，英格兰人在教堂里举行婚礼仪式时，新郎给新娘戴戒指是不可缺少的一项重要内容。
The rings are married or engaged to the traditions of many peoples, England held in the church wedding ceremony, the bride and groom to wear a ring is indispensable one important element.
结婚或定婚戒指是许多民族的传统习俗，英格兰人在教堂里举行婚礼仪式时，新郎给新娘戴戒指是不可缺少的一项重要内容。
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