Evacuation routes are well-signed, and vertical evacuation is available in areas distant from high ground.
疏散路线标的很清楚，在距离地面很高的地区也设置了垂直疏散。
The immediate opportunity may simply be to take advantage of the space available on urban rooftops, says Mr Head, and to pursue urban farming rather than vertical farming.
海德说，就目前来看，人们仅能利用城市屋顶空间进行耕作，追求垂直农场还不如直接实施屋顶农场。
Furthermore, the vertical language units are hierarchically organized into up to three levels, with each successive level adding more modeling capabilities to those available in the levels below.
此外，垂直语言单元按级别组织成三层，通过在那些可用的层上增加建模能力可以形成相互连续的更高层。
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