这种系统需要并行控制和恢复机制。
Such a system requires concurrency control and recovery mechanisms.
版本控制系统通常用于文件备份、并行开发和变更管理。
Version control systems are typically used for file backup, parallel development, and change management.
如果需要的话，对并行化进行控制也可以通过声明的做法。
If needed, control over the parallelism is also done declaratively.
如果你在做并行开发，那么让你的源码控制工具帮助你。
If you're doing parallel development, let your source control tool help.
该系统可以作为常规控制图的一种并行监测方法。
This system can act as a kind of monitoring measure parallel to conventional control chart.
并行数据结构深入理解和控制。
Understanding parallel data tree structure and how to control it.
由于微机的并行口只有一个，只能直接控制一台步进电机。
Because PC has only one parallel interface, it can directly control only one stepping motor.
由于微机的并行口只有一个，只能直接控制一台步进电机。
Because PC has only one parallel interface, it can directly control only one stepping motor.
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