Duplication technique的用法和样例：
例句
- A replica technique is used to record the scratch patterns before and after loading.
可采用一种复制技术把在加载前后的划痕图案记录下来。 - Based on this, task duplication technique is adopted to make DCS have fault-tolerance.The fault-tolerant and schedulable condition is investigated.
在此基础上，采用版本复制技术使系统具有容错能力，并分析了任务的容错可调度条件。
