在一些地区，需要改进的空间：先于新建筑的大型停车场，具有不透水性，无灰水系统。
And there is room for improvement in some areas: the Boulder parking lot, which predated the new building, is not permeable. There is no gray water system.
传统的不透水性硬化挡墙切断了河道与岸边之间的物质、能量及信息的交换，阻碍了河道水体与地下水体的相互补给。
The traditional impermeable hardening retaining wall cut off the exchange of material, energy and information between rivers and coasts, and hinder the mutual supply between river and groundwater.
一块石墨或是一颗钻石能很悠然自得地躺在实验台上而不会被灼烧成火焰或被锈化，并且由于其不透水性，它是不会和水发生反应的。
A lump of graphite or a diamond will sit happily on a laboratory bench without bursting into flames, or even rusting, and is impervious to the action of water.
一块石墨或是一颗钻石能很悠然自得地躺在实验台上而不会被灼烧成火焰或被锈化，并且由于其不透水性，它是不会和水发生反应的。
A lump of graphite or a diamond will sit happily on a laboratory bench without bursting into flames, or even rusting, and is impervious to the action of water.
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