有时稳定性成问题，并且转换和验证也不是很迅速，但这些产品的普通界面没有明显停顿。
Stability was sometimes an issue, and transformations and validation are not necessarily immediate, but the mundane interfaces of these products did not have noticeable pauses.
外部表对驻留在底层操作系统中的数据文件提供一个普通的表界面。
External tables provide a normal table interface to data files that reside in the underlying operating system.
但是，组成它们的项目是一个普通的定义模型，由主要的功能性程序、界面与其他 ABB 之上的附件组成。
What unites them, though, is a common definition model that comprises main functional applications, interfaces, and dependencies upon other ABBs.
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