defence works造句怎么写

8、This means large-scale mobile warfare, and not positional warfare depending exclusively on defence works with deep trenches, high fortresses and successive rows of defensive positions.

1、Design specification of CBR defence for civil air defence works

3、Code for construction and acceptance of civil air defence works

5、Design code of civil air defence works with dual utilization of peacetime and wartime

7、The significance, concepts, principles, contents, requirements and approaches of function conversion for civil air defence works were discussed and some suggestions were given.

2、Civil air defence works lighting design standard

6、Ensuring the proportion of population evacuation reasonably is the key to analysis of the demand of urban civil air defence works.

4、Code for fire protection design of civil air defence works

9、All these cities were fortified with many groups of blockhouses, and some had high, thick city walls; also, they all had auxiliary defence works, including multiple lines of trenches, barbed-wire entanglements and abatis.