Normally, it is relatively straightforward to provide a ramped connection between the existing street level system and the underground extension.
英
美
- 通常,建造一条倾斜道路,把已有的马路交通系统与地下延伸道路连接起来比较简单直接。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries