查询词典 beam-focusing

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。

A complete card sliver bleaching plant consists of a winding machine, warp beam material carriers, HT bleaching unit and beam centrifuge.

一个完整的生条漂染厂由一个绕线机，经轴物质载体，羟色胺漂白单位和梁离心机。

Let -off systems fall into one of three major categories. The simplest let- off system is known as negative let- off. This system merely consists of a brake continually applied to the warp beam to retard the motion of the beam.

送经系统有三种，最简单的是消极式送经机构，该机构仅仅是靠一个制动机构连续地给织轴施加制动作用以阻止织轴的转动。

At early days, after tune compensation with SC wiggler, beam was successfully stored with a short beam lifetime.

最初，在补偿工作点漂移后，成功地存储了束流并产生了硬X射线，但该运行模式下束流寿命短，严重影响其它实验线站的实验工作。

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％。