Waterproof jointagent is useful and has great value in construction practice of tunnel lining.
在隧道混凝土衬砌工程中有良好的推广应用前景。
2
Vietnam is beginning a joint operation with the United States to remove traces of the toxic defoliant Agent Orange.
越南开始与美国联合开战清除有毒的橙剂(Agent Orange)污染残留的行动。
3
Explored and recorded the curative effect of protecting pulp bottom material glass ion curing agent and self-congealing hl joint zinc phosphate cement posterior teeth with deep caries repaired.