But when you need to switch from one operating system to another-be it because of a change in business direction, technology enhancements, or cost savings-making the switch can be tough.
但是，当您从一种操作系统转换到另一种(可能是因为业务方向发生变化，技术增强，也可能是为了节约成本)，完成转换会非常困难。
By abstracting much of the underlying implementation technology, SCA lets a system be more flexible and readily adapt to change while incorporating subsystems implemented in different technologies.
通过大量抽象底层实现技术，sca使系统在合并使用不同技术实现的子系统时可以更加灵活并迅速适应变化。
The widely application of software increasingly change the malfunction mode of control system, so the significance of studying new safety technology becomes very important.
软件的日益广泛应用逐渐改变了控制系统的故障模式，因此对新的安全故障技术的研究具有重要的意义。
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