这些水渠往往要凿通岩石，并需要地道、引水沟、弯管、渡漕和混凝土水道。
These canals are frequently excavated through rock, and require tunnels, flumes, syphons, aqueducts and open concrete-lined channels.
试验证明，免拆模板网用在一、二期混凝土中可以代替人工凿毛工艺。
It has proved by the experiment that the non - removal mesh form can replace the manual roughing on concrete surface in the first and second stage concrete construction.
立面采用白色冰裂纹混凝土挂板，以32块组成可重复的基本单元，通过沿不同角度的凿毛处理，可以随光照的变化产生丰富的外观效果。
Duplicated in a seemly-random way, the 32-panel-units create abundant effects with the change of light and shadow.
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