查询词典 beaten track

In fact, the control problems of the sonar array posture are track control problems. So On the basis of theoretic study, the author designs the robust output track control of the posture of the sonar base with regulable parameter and applies the study results of measurable disturbance decoupling and robust output track to the minehunting sonar array posture control, a robust control strategy with disturbance decoupling, output track and compensation for uncertainty is found.

猎雷声纳基阵的姿态控制问题实质上是跟踪控制问题，在进行理论研究的基础上，作者设计了具有可调参数声纳基阵姿态鲁棒输出跟踪控制系统，并基于反馈线性化方法将可测干扰解耦研究结果与鲁棒输出跟踪研究结果相结合，形成了同时具有干扰解耦、输出跟踪和不确定性补偿的猎雷声纳基阵鲁棒控制策略。

In doing back-up data, we followed the work to be done is to switch to a system running DOS, and DOS command line in the implementation of "fdisk / mbr" command string to try to repair the hard disk of soft failure occurred ; if such a repair method to try is invalid, then we can go online to download and install the hard drive Bad Track professional testing tool to double-check the local hard disk in the phenomenon of the existence of Bad Track, Bad Track If you can not find the hard disk, it can not detect hard drive through the phenomenon is likely to be caused by the logic of failure, the logical solution is to find a Bad Track Repair Repair Tool to re-click the hard disk, only to do so.

在做好数据的备份工作后，我们接下来要做的工作就是将系统切换到DOS运行状态，并在DOS命令行中执行"fdisk /mbr"字符串命令，来尝试修复硬盘中发生的软故障；要是这种修复方法尝试无效的话，我们可以到网上下载安装一些专业的硬盘坏道检测工具，来仔细检查本地硬盘中是否存在坏道现象，如果找不到硬盘坏道的话，那硬盘检测无法通过的现象很可能是逻辑故障引起的，解决办法就是找逻辑坏道修复工具来重新修复一下硬盘，只能这样做了。

In doing back-up data, we followed the work to be done is to switch to a system running DOS, and DOS command line in the implementation of "fdisk / mbr" command string to try to repair the hard disk of soft failure occurred ; if such a repair method to try is invalid, then we can go online to download and install the hard drive Bad Track professional testing tool to double-check the local hard disk in the phenomenon of the existence of Bad Track, Bad Track If you can not find the hard disk, it can not detect hard drive through the phenomenon is likely to be caused by the logic of failure, when the only thing we can use the way is hard to find the logic of the corresponding brand Bad Track Repair Repair Tool to re-click the hard disk, I believe that case the hard disk will be able to detect the phenomenon can not be resolved the.

在做好数据的备份工作后，我们接下来要做的工作就是将系统切换到 DOS 运行状态，并在 DOS 命令行中执行" fdisk /mbr "字符串命令，来尝试修复硬盘中发生的软故障；要是这种修复方法尝试无效的话，我们可以到网上下载安装一些专业的硬盘坏道检测工具，来仔细检查本地硬盘中是否存在坏道现象，如果找不到硬盘坏道的话，那硬盘检测无法通过的现象很可能是逻辑故障引起的，此时我们唯一可以使用的办法就是找到对应品牌硬盘的逻辑坏道修复工具来重新修复一下硬盘，相信这么一来硬盘检测无法通过现象就能被解决了。

According to structural characteristics of floating slab tracks, a track segment element was taken between two adjacent fasteners. For each element, rails were regarded as Euler beams supported by discrete viscoelastic supports. The fasteners and rubber supports were replaced by a linear spring and damp. So the vibration model of the floating slab track was established. In constructing vibration model of a metro train, each car of the metro train with two suspensions was modeled as a multi-rigid body system, in which rigid bodies were connected with each other by a linear spring and damp. Combining the potential energy of vertical vibration of the track with that of the metro train, the total potential energy of vertical vibration of the train and track was obtained. And then, the matrix equation of vertical vibration of the system was established using the principle of total potential energy with stationary value in elastic system dynamics and the "set-in-right-position" rule for formulating system matrices. The vibration responses of the system can be obtained by solving the matrix equation with the direct time integration such as Wilson-θ method.

摘 要：针对浮置板式轨道结构特点，取相邻2个扣件之间的轨道为1个轨段单元，钢轨视为连续弹性点支承Euler梁，浮置板视为弹性薄板，扣件系统及橡胶支座均模拟为线性弹簧及粘滞阻尼器，建立浮置板式轨道振动模型；将城轨列车中的车辆均离散为多刚体系统，各刚体之间通过线性弹簧及粘滞阻尼器相连，建立列车振动模型；将浮置板式轨道及列车振动势能叠加，得到系统竖向振动总势能；基于弹性系统动力学总势能不变值原理及形成系统矩阵的"对号入座"法则，建立此系统竖向振动矩阵方程；采用Wilson-θ逐步积分法求解此矩阵方程，得出此系统竖向振动响应。

This paper analyses the sustainable development of track and field sports from the macroscopical and microcosmical angles of view,discusses the sustainable development of track and field sports from the angle of the market and factors influencing the development of track and field sports, in order to provide reference s for the future developing direction and relevant decision-making of track and fields sports.

从宏观和微观的角度分析田径运动的可持续发展，并从市场的角度和影响田径运动发展的诸因素来探讨田径运动的可持续发展，旨在对田径运动今后的发展方向及相关决策提供参考。

The rule of the circuit of track of our country is mainly to move the circuit of track frequently, including domestic 18 information move frequently track circuit and introduce France UM71 type and ZPW-2000 type that domesticize move circuit of track frequently.

我国轨道电路的制式主要是移频轨道电路，包括国产18信息移频轨道电路和引进法国UM71型并加以国产化的ZPW—2000型移频轨道电路。

Line and arrival-depart track impropriate table model on single-track, double-track or multi-track is set up.

提出了区间线路和到发线占用表模型，该模型不仅对单双线适用，同时适用于三线及多线铁路。

In order to investigate the dynamic performances of the curved track structure,the dynamic properties of the strengthened track and the unstrengthened track were compared based on system engineering theory and vehicle-track coupling dynamics.

基于系统工程思想，运用机车车辆-轨道耦合动力学理论，对采取了强化技术对策后的山区铁路小半径曲线轨道的动力性能进行仿真计算，并与强化前轨道结构动力学性能进行了对比分析。

In this thesis, a detailed dynamics model of various kinds of tracks laid on the bridge such as ballast track, REHDA track, slab track, elasticity supported block track and all kinds of roadbed-bridge transition structure of the high-speed railway is established for the

本文在国内首次针对高速铁路桥上有碴轨道、长枕埋入式无碴轨道、板式轨道、弹性支承块式轨道结构以及各种轨道的路桥过渡段建立了系统全面的动力学模型。

Research purposes:The paper gives an introduction to the additional force transfer mechanism of welded turnout on ballastless track,presents the calculation model for welded turnout on ballastless track, calculates additional force and deformation of welded turnout on ballastless track by FEM,the result is compared with ballast track.

研究目的：分析无砟轨道基础上无缝道岔的纵向力传递机理，建立无砟无缝道岔计算模型，采用有限单元法计算了无砟无缝道岔受力及变形，并与有砟轨道无缝道岔进行了对比分析，为无砟无缝道岔设计提供参考依据。

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我们完全可以满足你方的需求。

We are all pervade d with a sense of disaster.

我们普遍有大祸降临的感觉。