做法

Costs for maintenance of activities mainly cover training, construction and maintenance of facilities and running expenses.

活动维持费主要用于部队训练、工程设施建设及维护和日常消耗性支出

Technical and constructional characteristics, designing of pipeline project in dilative soil areas are all elaborated in the article.

详细介绍了膨胀土地区的技术特性及膨胀土地区管道工程的设计、施工措施。