Yangmingsha Hydropower station dam is a C15 small size aggregate concretestone masonry double curvature arch dam with crest spillway and flip buckets for energy dissipation.
阳明山水电站拦河坝采用C15细石混凝土砌石双曲拱坝，坝顶表孔泄洪，挑流消能。
2
Hire a professional landscaper to come in and remove the existing lawn and install stone or concrete paving stones.
首先需要雇佣一个职业的园林设计师，移除现存的草坪，然后安装上石头或者混凝土的铺路石。
3
Whether you choose concrete or real stone, a patio is expensive.