查询词典 odd element

Helium is a critical element in many applications.

氦气是许多工业应用中的关键性元素。

282 The element of helium was first found in the sun.

参考译文氦元素最初是在太阳里发现的。

The helix double-blade finite element model of milling process of titanium alloy is developed for the first time.

基于对实际加工特征的分析建立了螺旋双刃铣削加工有限元模型，研究了有限元模拟所必需的若干关键技术。

Scar and acute abdominal disease bring about shock element to have hematic capacity inadequacy, infection...

创伤及急腹症导致休克因素有血容量不足、感染。。。

The authors adopted the software of finite element to simulate rock tension fracture, gave the breakdown of extensional criterion, selected the round, arch wall, rectangle, trapezoid and hemicycle as the simulation models and obtained the tension fracture forms of different shape chambers.

采用可模拟拉张破裂的有限元软件，给出拉张破裂的判据，分别选取圆形、直墙拱形、长方形、梯形、半圆形硐室模型进行拉张破裂有限元数值模拟。

Objective To construct a three-dimensional finite element analysis model of the first mandibular molar with hemisection prosthodontic therapy.

目的：建立下颌第一磨牙半切术的三维有限元模型。

There may be a genetic or hereditary element to the condition, so it may run in the family.

有可能是遗传或遗传因素的条件，因此它可能运行在家庭中。

In contrast ,a poet's biography traditionally functioned as a crucial hermeneutic element for Chinese readers.

与此相反的是，在中国，诗人的生平对读者来说起著关键性的作用。

According to the studied results at present, the studied objects are mainly thin plate and beam about sound radiation mode, a method computed sound radiation mode of complex structure is presented in this dissertation, according to the results of the previous two chapter, a theoretical method to solve acoustical radiation mode and acoustical radiation efficiency of complex structure by boundary element method and acoustical radiation theory is posed, the acoustical radiation power is expressed as a Hermitian quadratic form, while the radiation modes is determined by general eigenvalue decomposing, and then the radiation efficiency is computed via the orthodoxy of radiation modes with regard to impedance matrix and average velocity matrix; lastly, the validity of the method is proved by pulsating sphere and radiating cube with analytical results. According to results of the form three chapter, the structure sound radiation sensitivity is studied in detail, the sound radiation power of structure can be expressed as positive Hermitian quadratic form, the sound radiation sensitivity can be expressed as two parts by partial differential with respect to design variable, which are sensitivity of boundary velocity and impedance matrix, combined with the theory of FEM and BEM, the structure sound radiation can be translated to the analysis of structure dynamic sensitivity and impedance matrix sensitivity. The theory posted in this dissertation is tested by the FEM software ANSYS and the software AAS programmed by author.

在前几章的基础上，通过结构声辐射的模态理论对结构的声辐射的机理进行了深入地探讨，针对目前声辐射模态的研究对象主要是简单的板和梁类结构，提出了一种计算复杂结构声辐射模态的方法，利用前两章研究所得的结论，将边界元方法与广义特征值的理论结合起来研究了复杂结构的声辐射模态与声辐射效率，先将结构的声辐射功率表示为一个正定的厄米特二(来源：ABb7C论文0909网www.abclunwen.com)次型，运用广义特征值分解求解了复杂结构的声辐射模态，然后利用声辐射模态关于阻抗矩阵与均方速度耦合矩阵的正交性，求解了复杂结构的声辐射效率，最后用具有解析解的脉动球与辐射立方体验证了该方法的有效性。

By means of Hertz contact theory the correctness was verified on finite element analysis.

并通过赫兹接触理验证了有限元分析的正确性。

A carrier gas such as nitrogen is directed through line 20 and valve 22 to connect with line 26 and mix with the gas sample.

如氮气之类的载体通过管线20和阀22引入，与管线26相通，与气体样品混合。

But for the most part, knaves and parasites had the command of his fortune

然而支配他的家产的大多是恶棍和寄生虫。