查询词典 beam-focusing

The plastic deformation capacity of the specimens having web openings in plastic zone of the steel beam depends on the reinforcement at beam-to-column connection. The unreinforced specimen could not develop enough ductility, while the specimens reinforced with shear tab or vertical stiffener can achieve satisfactory ductile behavior.

试体於钢梁塑性区腹板开孔，其塑性变形能力则有赖梁柱接头之补强，未补强之试体无法发展出足够之韧性，惟以剪力板或垂直加劲板补强之试体则可发展出令人满意的韧性行为。

In this thesis, overlying strata structure combined"voussoir beam"with"half arch"have been put forward for first time, and mechanism and control features of different forms of"half arch"structure and"S—R"stability for the voussoir beam are analysed.

本文在现场实测研究的基础上，采用相似模拟实验、有限元数值模拟和理论分析方法对综放采场上覆岩层的变形和破坏发展过程进行了系统深入的研究。

Incline rock-beam"the structure is always goes against after the working surface above main roof snaps forms along inclines the direction three-pinned arch, manifested "Voussoir beam" the structure basic characteristic, its scope was upward expansion "the balance - lost unceasingly steadily - balances again - loses again steadily the dynamic process.

倾斜岩梁"结构是由工作面上方的老顶破断后形成的沿倾斜方向的三铰拱，体现了"砌体梁"结构的基本特征，其范围是不断向上扩展的一个"平衡—失稳—再平衡—再失稳的动态过程。

Theoretical Analysed the roof without voussoir beam structure in shallow seam mining under thick unconsolidated layers, thus, cannt use voussoir beam theory to compute the force of supports.

通过研究破断岩柱中关键岩块的平衡条件，建立了关键岩块结构力学模型，得到了厚粘土层覆盖浅埋煤层综采面支架合理支护阻力的理论计算公式。

Two methods for calculating the post of water beam in walking beam furnace are introduced,and the data from the two methods are compared.

文章介绍了步进梁式加热炉水梁支承立柱的两种计算方法，并对两种方法的计算结果进行了比较，对正确选择立柱断面具有指导意义。

The reasons of damage and preventive measures of the post of support;2. Two methods for calculating the post of water beam in walking beam furnace are introduced,and the data from the two methods are compared.

文章介绍了步进梁式加热炉水梁支承立柱的两种计算方法，并对两种方法的计算结果进行了比较，对正确选择立柱断面具有指导意义。

The paper analyzes the fundamental characteristics of walking beam reheating furnace"s velocity control system in theory, and exactly builds the mathematical model of walking-beam-type reheating furnace"s velocity control system by mechanics analysis. It analyzes capacity speed governing systems dynamic characteristic and anti-interference performance in load. It also simulinks the system.

本文从理论上分析了步进梁加热炉速度控制系统的基本特性，并通过力学分析比较精确的建立了步进梁加热炉速度控制系统的数学模型，分析了泵控容积调速系统的动态性能和抗负载干扰特性，并进行了仿真。

In order to ensure walking beam run in preset rate curve, to avoid happening some accidents in system, for example, the big inertia will result in the ahead impacting of walking beam, the system uses advanced electro-hydraulic control technology.

避免系统中由于大的惯性力而导致的步进梁前冲等事故发生。

This paper analyses mechanics property of horizontal press winding adopted on warping machine, develops the law of warp beam pressure and puts forward the way to reduce the motion between the roller and warp beam.

分析了整经机水平轨道式加压卷绕机构的力学特性，通过计算得出了经轴正压力的变化规律，提出了降低滚筒与经轴间压力最大波动幅度的措施。

By comparing DC, AC and step-motors and analyzing the driving characteristics of the warp beam, a conclusion was drawn that a higher performance to price ratio could be got when a step-motor was selected for the warp beam.

通过对直流电机、交流电机和步进电机的比较，结合织机的织轴驱动特点，得出选用步进电机有较高性价比的结论。

Metrorrhagia is also gynaecological problems of common diseases.

崩漏是妇科常见病也是疑难症。

WordFTP gives you the convenience and timesaving you need.

wordftp让您的方便和省时您所需要的。