查询词典 structure stability

Therefore, the multi-stage interaction structures with losses and severed structure were more stability for absolute instability and gyrotron backward oscillations. This study presents a nonlinear analysis of typical oscillations, including absolute instability, gyrotron backward oscillation and reflective oscillation. The multi-stage gyro-TWT seem to increase effectively the start-oscillation currents of the absolute instability, gyro-BWO, and reflection oscillation.

所以在本研究分析中，藉由了解磁旋行波放大器中的自发振荡物理原因及特性，将有助於高功率放大器的设计，并且引用非线性程式进行磁旋行波放大器稳定分析，并且采用兼具隔离管及散布式损耗结构的磁旋行波放大器，同时提升绝对不稳定、磁旋返波振荡及反射振荡的稳定性能有效提升磁旋行波放大器输出功率和频宽。

It is found that the ploating structure of copper power is related to mechanism of nucleus forming and content of silver;Thermal stability is affected by plating structure of silver-coated copper power.Silver-coated coppe...

结果表明：铜粉表面镀层结构与银离子形核长大机制和银含量有关；镀银铜粉的热稳定与表面镀层结构有关；完全包覆结构的镀银铜粉具有较好的热稳定性，抗氧化温度可以达到800℃以上。

The interference, which has much to do with shimmy and handling characteristic and directional stability of vehicle, between the suspended structure, the front axle and steering system is described accurately In the models, the concrete component parameters or the design parameters are adopted to make it easy that the models are directly used in optimization design of real products. In order to make mathematical simulation and optimum analysis accurately with a particular vehicle and to study the influence of tyre characteristics on the lateral dynamic performance of vehicle, not only are the whole structure parameters in the models measured, but also is the test of the tyre cornering characteristics done, the accurate parameters of the tyre cornering characteristics are obtained and the practical tyre models of both steady state and dynamic state are selected.

为了提高仿真计算与优化分析的精度，和进一步分析有关轮胎特性对汽车横向动力学特性的影响，除了测量了模型中的全部结构参数外，特别做了轮胎侧偏特性试验，获得了比较准确的轮胎特性参数，并选用了比较实用的轮胎动态和稳态侧偏特性模型。

The structure design process of Macao Dome is introduced, and important analysis results and technical measures are presented. Key problems such as deep foundation in earth fill seashore, extra long prestressed concrete flat slab on the ground floor, large span ellipsoidal steel roof structure and its overall stability are discussed emphatically.

介绍了该项目的结构设计情况和主要的结构分析结果和重要的技术措施，着重讨论了填海地区的深基础、首层超长预应力钢筋混凝土大板、超大跨度椭球面钢屋盖体系及其整体稳定等结构设计中的关键技术。

The application of the prior three-dimensional composite shock-proof bearing into the large span mesh roof structure has the following problems:(1) the level shock-proof bearing is series-connected with the vertical shock-proof device, the height of the bearing is large, so it is lack of stability ;(2) the horizontal displacement of the structure under earthquake is large,(3) it is lack of vertical pulling-proof ability, the bearing rotational capacity is insufficient.

现有的三维复合隔震支座要将其应用于大跨网格屋盖结构存在以下问题：(1)水平隔震支座与竖向隔震装置串连，支座的高度大，缺乏稳定性；(2)在地震作用下结构的水平位移较大；(3)缺乏竖向抗拔能力，支座转动能力不足。

A software for aided designing bolt of tunnel named ANSYSBOLT was designed on the basis of ANSYS finite element software. In the software environment, bolt supporting model of physical tunnel in tectonic stress field was structured according to physical parameters of coal and rock seam of some working face, and in conditions of different buried depth, bolt supporting structure and pre-tightening force, distributions of stress of surrounding rock of physical tunnel and its displacement were analyzed and calculated by ANSYSBOLT software. Then influence of different buried depth, bolt supporting structure and pre-tightening force on stability of roof and floor of tunnel was analyzed and finally feasible scheme of bolt supporting was gotten according to the analysis result.

在ANSYS大型有限元软件基础上开发了巷道锚杆辅助设计软件ANSYSBOLT；在该软件环境下，根据某工作面煤岩层的物理参数，建立了构造应力场条件下的实体巷道锚杆支护模型，并按照不同的埋藏深度、锚杆支护结构和预紧力条件，经软件分析计算，得出了实体巷道围岩应力及位移分布情况，进而分析了不同埋藏深度、锚杆支护和预紧力条件对巷道顶底板稳定性的影响，最终根据分析结果得出了可行的锚杆支护方案。

Through force analysis of bill board on high roof and calibration o f strength and stability of bill board steel structure under the action of self weight and wind-force to determine the reasonable structure and material used fo r saving the rude material.

对高层屋顶广告牌的设计进行了受力分析，校核了广告牌钢结构在风力及自重力作用下的强度及稳定性，能在满足要求的前提下节约原材料。

Stability is more and more important for steel structure design with the widely application of steel structure system .

稳定问题一直是钢结构设计的关键问题之一，钢结构体系的广泛应用更加突出了稳定问题研究的重要性和紧迫性。

The stability of steel structure is a major problem in the field of steel structure.

稳定性是钢结构的一个突出问题，在各种类型的钢结构中，都会遇到稳定问题，如果这个问题处理的不好，就会造成不应有的损失。

Study on its stability has far-reaching significance to reasonable structure design and the promotion of lightweight steel structure development.

它的稳定性的研究对于合理的结构设计，推动轻型钢结构的发展具有深远的意义。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。