通常，由于资源利用率和应用程序更改灵活性的限制，源系统受到了一定的约束。
Often, the source systems are constrained because of resource utilization and the limited flexibility for application changes.
对于开发测试和系统测试环境有可能是这样，但是由于其他运行时环境的限制，使得这些操作即使不是不可能的，就是不切实际的。
This may be possible for development test and system test environments, but other run time environments have restrictions that make such practices impractical, if not impossible.
由于技术方面的限制，重要的是酒店充分利用OTA系统，因为越来越多旅行者正在寻求一站式的购买平台。
Due to limitations in terms of technology, it is important to leverage the OTA system, more and more travellers are now looking for a one-stop shop for their purchases.
应用推荐