The backup roll chock is one of the key and important parts of the rolling mill.
支承辊轴承座是轧钢机上的关键零件之一，也是重要零件和加工周期长、难度大、精度要求很高的零件。
The causes of failure in early stage of work roll and backup roll for cold mill were discussed in the paper.
介绍了冷轧支撑辊及工作辊早期失效的主要原因。
This article recommends a local noncontact method to remedy the surface crack on the backup roll of the hot rolling mill.
本文介绍了用局部不接触法修复轧机支承辊表面裂纹的方法。
The structure and seal principle of the seal components of HAGC cylinder and oil film bearing of backup roll were introduced.
介绍了HAGC油缸和支承辊油膜轴承用密封件的结构和密封原理，对两种大型进口密封进行了国产化研究，并成功用于实际生产中，密封效果良好。
Both the life span of backup roll and its economic benefit are greatly increased by transforming the backup roll into integral bearing unit.
将支承辊改为整体轴承单元，从而大大提高了支承辊的使用寿命，取得了明显的经济效益。
Comprehensive function of varying contact length backup roll (VCR) is analyzed by using the finite element model for elastic deformation of rolls.
利用建立的有限元辊系弹性变形模型，分析了变接触支持辊(VCR)的综合性能。
Roll shape parameters of every working rolls and backup rolls were specified through the optimization design calculation of the typical productions.
通过对提供的典型规格产品进行辊型优化设计计算，确定每一架轧机工作辊和支承辊的辊型参数。
The FEM analyze is done for the load bearing capacity of roll set of cold leveling machine under the condition of the practice roll shape of backup roll.
又对实际支承辊辊型条件下冷矫辊系承载能力进行了有限元分析。
The backup roll chock is one of the key and important parts of the rolling mill. It has a long machining duration and the accuracy of the machining is very high.
支承辊轴承座是轧钢机上的关键零件之一，也是重要零件和加工周期长、难度大、精度要求很高的零件。
The paper discusses the necessity of applying double stepped backup rolls, and describes the methods for calculating the contact length and stepped depth and work roll crown.
论述了采用双阶梯支承辊的必要性。提出了接触长度、阶梯深度及工作辊凸度的计算方法。
The configuration of dissymmetrical CVC work roll contour and symmetrical conventional backup roll contour results in bad self-maintenance of backup rolls in downstream stands.
非对称的CVC工作辊与对称支持辊辊形配置易导致下游机架支持辊辊形自保持性差。
The application results show that work roll and backup roll designed with this method have good adaptability, and the plate crown and roll consumption have been reduced greatly.
经现场实践应用表明，采用该方法设计出的工作辊、支持辊辊型曲线适应性好，并大大地改善了板凸度和轧辊磨损情况。
The results we obtained prove that the power function curve can not only improve the service life of the backup roll but also benefit the profile and shape control of hot rolled strip.
经试验验证，采用幂函数的辊形优化曲线可提高支撑辊使用寿命，并有利于板凸度和板形控制。
By the influence function method the influence of plate width, work roll radius, backup roll radius, work roll crown, backup roll radius and rolling force on gap setting were calculated.
根据影响函数法计算轧辊凸度对辊缝设定的影响，当保持工作辊和支承辊凸度不变，则轧制力与辊系弹性变形呈线性关系，工作辊和支承辊凸度的变化对直线的斜率几乎没有影响。
Four-row roller bearings on the working rolls mainly bear roll-bending force and axial force, while the oil film on the backup roll mainly bear rolling force and most of the bending moment.
工作辊上的四列滚子轴承主要承受弯辊力和轴向力，而支撑辊上的油膜轴承主要承受轧制力和绝大部分弯曲力矩。
To restore without losing data, you will restore from the first Sunday backup, followed by incremental backup taken on Saturday and roll forward.
要进行恢复，而又不丢失数据，那么您需要从第一个星期天备份恢复，然后恢复星期六取得的增量备份并进行前滚。
With online backup, there is a means to roll forward the logs to any specific point in time or to the end of the logs.
利用在线备份，就可以将日志前滚到任何特定的时间点或日志的末尾。
To recover from the incremental backup, there are only two steps to follow, Restore the incremental database and roll forward to completion.
要恢复增量备份，只需要两步，恢复增量数据库并前滚。
You can either use a copy of your backup image and roll it forward to the time right before the table was dropped (point-in-time recovery), or you can restore a logical backup through the exp utility.
您可以使用备份映射的副本，并将它前滚至删除表之前的某个时间点(时间点恢复)，或者您可以通过exp实用程序恢复逻辑备份。
Without such a backup, your only option is to roll back the entire cell.
如果没有此类备份，您的唯一选择将是回滚整个计算单元。
If you choose to have archive logging, and do an online backup and roll forward recovery, you can recover to a point in time or to the end of the logs for the minimum loss of data.
如果您选择使用归档日志记录，并执行联机备份和前滚恢复，那么您可以恢复到数据丢失最少的那个时间点，或者恢复到结束日志的时候。
Note that you can restore either a full backup manually, apply the Saturday incremental backup image and roll forward.
注意，您可以手动恢复完全备份，应用星期六的增量备份映像并进行前滚。
In other words, you cannot roll forward to a specific point in time or to the end of logs from the last full database backup.
换句话说，无法前滚到上次全数据库备份以来的任意时间点或日志的末尾。
For delta backup and restore, in the same scenario, you will restore each day's delta backup image (Monday through Saturday) and roll forward to complete the recovery.
对于相同场景中的delta备份和恢复，您将恢复每天的delta备份映像(星期一到星期六)，并执行前滚操作来完成恢复。
You will restore the backup image and roll forward to complete the process, or leave the database in a pending state. There are two types of rolling forward.
您将可以恢复备份映像和前滚来完成恢复处理，或者让数据库停留在挂起状态。
You will restore the backup image and roll forward to complete the process, or leave the database in a pending state. There are two types of rolling forward.
您将可以恢复备份映像和前滚来完成恢复处理，或者让数据库停留在挂起状态。
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