Article 4 the state shall encourage the active adoption of international standards 第四条国家鼓励积极采用国际标准。
2.
The practice shows that it is effective to decrease the cracking of the concrete lining slab through the active adoption of those measures 实践证明:通过采取积极的预防及控制措施,对减少混凝土衬砌板裂缝的产生是非常有效的。