2. In this view, sustainable single-
ply systems still have a significant potential for growth.
因此,我认为可持续性单层屋顶系统仍有相当大的发展潜力。
3. The dynamic response of antisymmetric angle-
ply laminated plates was calculated by using the method of spline collocation in time domain.
提出用加权残值法中的时域样条配点法对反对称角铺设层合板进行动力响应计算。