您可以使用DITA专门化分别为这些约束、条件和不变式建模，可能还要扩展concept主题类型。
You can model these constraints, conditions, and invariants independently using DITA specialization, probably by extending the concept topic type.
特殊的建筑物形式和设计条件在本文件中没有专门包括，在此情况下需要进一步的专家论证。
Unusual forms of construction or design conditions are not specifically covered and additional expert consideration will be required by the designer in such cases.
由于产品可靠性的周边条件日趋严格，人们越来越多地采用许多专门的可靠性方法。
The use of special reliability methods has to be increased due to stronger boundary conditions in reliability.
应用推荐