因此，混凝土预制块拱桥拱桥以其独特的优势受到欢迎。
Therefore, the small and medium-span arch bridge is welcomed with its unique advantages.
过去在越南，有花纹的格子体块常常被用来获取自然通风的遮蔽设备。这类体块用60厘米见宽和40厘米见高的预制混凝土块堆砌而成。
Pattern blocks, which used to be a popular shading device in Vietnam to get natural ventilation, are made of pre-cast concrete with 60cm width and 40cm height.
应用推荐