The development process for back roll in heavy and medium plate mill has been introduced in detail.
详细介绍了中厚板轧机支承辊的研制过程。
In its simpler form, the mechanism consists of a CAM operated lever to vibrate the back roll, called the whip roll.
比较简单的方式是机构中包括一个由凸轮控制的连杆，用以驱动后梁摆动。
One provision of the law was to roll back taxes to the 1975 level.
该法律的一项条款是把税收削减至1975年的水平。
I am thinking back now to when I first started listening to rock 'n' roll and I remember my father saying it was a bad influence on us.
我现在回想第一次听摇滚乐的时候，还记得父亲说它对我们有不好的影响。
Roll back conditions (CGTT allows flexibility for this).
回滚条件(CGTT具有这方面的灵活性)。
If the code performing the actions decides not to commit or cannot commit successfully, then it must roll back the transaction to undo the actions.
如果代码执行的操作决定不进行提交或者不能成功提交，那么它必须回滚该事务以取消这些操作。
With this symlink in place and each deployment in a separate directory, it is easy to roll back to previous versions of the application.
有了这个符号链接及每一个位于单独目录的部署，应用程序就可以轻松回滚到之前的版本。
I actually did have to roll back the server migration from my first example because of time.
对于第一个示例，由于时间的原因，我实际上不得不回退了服务器迁移操作。
Resource managers are the only ones who know their resources and how to commit them or roll them back.
只有资源管理器知道它们的资源及提交或回滚它们的方法。
For user and server processes, PMON will release the locks held by users, roll back every uncommitted transaction, and release any resources this process is using.
而对于用户和服务器进程，PMON将释放用户持有的锁，回滚每个未提交事件，并释放该进程正在使用的所有资源。
This feature lets you easily move between versions as needed; for example, to roll back should a deployment go badly.
这个特性允许您根据需要在版本间轻松移动；例如，在一个部署出现问题时回滚到上一版本。
MOM policies should be improved by adding safeguards that would roll back management operations when they do not produce expected results.
应当通过添加防范措施来提升MOM策略，当他们不能产生预期结果时，应该能回滚管理操作。
Permitting nesting leads to situations where the internal transactions succeed, but the parent can still fail — so how do you roll back previously committed children?
允许嵌套会导致内部事务成功，但父事务仍旧可以失败的情况——那么您如何回滚先前提交了的子事务呢？
We need to do even better on the ground and engage with the broader Roll Back Malaria partnership.
我们需要在现场做得更好并与范围更广泛的遏制疟疾伙伴关系一起开展工作。
This causes the transaction to complete (commit or roll back) faster than in the API Layer transaction strategy.
其结果是，事务会比在api层事务策略中更快地完成(提交或回滚)。
For demonstration purposes, the transfer operation is modified to roll back the transaction whenever the transfer amount is an even number.
出于演示的目的，我们将转帐操作修改为每当转帐金额是偶数时就回滚事务。
Next month, WHO, together with the Roll Back Malaria Partnership, will be launching a global plan for the containment of artemisinin resistance.
下个月，世卫组织将与遏制疟疾伙伴关系共同发布有关遏制对青蒿素耐药的全球计划。
These migrations are all saved and time-stamped, to make it possible to roll back to previous versions of the data structure.
这些迁移操作都会保存，并加上时间戳，让我们可以回滚到数据库结构的上一个版本。
Stateless services are unaware of transactional state; therefore they cannot be requested to "roll-back" a set of changes if a transaction fails.
无状态的服务意识不到事务状态，因此如果事务失败时，不能请求它们“回滚”一组变更。
Source control allows you to "roll back" to a previous iteration of a file to restore the status quo or to recover from an error.
源代码控制系统允许用户“回滚”到以前的文件版本，从而恢复以前的状态或从错误中恢复。
If either the database update or the MQ enqueuing fails, then the entire transaction should roll back.
无论是数据库更新或是MQ 队列产生错误，整个事务都应被取消。
The only methods in the entire application architecture that start, commit, and roll back a transaction are public methods contained in API layer's domain classes.
整个应用程序架构中用于启动、提交和回滚事务的惟一方法就是api层的域类中包含的公共方法。
You are able to roll back to previous versions if anything goes wrong in the current model.
您可以回滚到以前的版本，如果当前的版本发生问题的话。
Today, in launching this global plan, WHO, together with Roll Back Malaria partners, is attempting to break this historical pattern.
今天在启动这一全球计划时，世卫组织与遏制疟疾伙伴们一起，正在努力打破这种历史格局。
In this case, the RM generally does most of the work to commit or roll back the transaction.
在这种情况下，RM通常执行提交或回滚事务所需的大部分工作。
Collectively we have to work to roll back desertification in the North, erosion in the Southeast and deforestation in the SouthWest.
我们所有人都必须努力击退北部的沙漠化，东南的水土流失和西南的森林流失。
The developer must specify where and when to roll back a transaction when a checked exception occurs.
开发人员必须指定出现异常时在何处以及何时回滚事务。
If an application crashes in the middle of a transaction, when it restarts, transaction recovery will roll back the open transaction.
如果在事务进行期间应用程序崩溃，则在重启时，事务恢复将回滚该事务。
If an application crashes in the middle of a transaction, when it restarts, transaction recovery will roll back the open transaction.
如果在事务进行期间应用程序崩溃，则在重启时，事务恢复将回滚该事务。
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