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与铁路隧道相比,公路隧道跨度大,扁平率低,开挖多采用分部法。
Compared with railway tunnels, the span of highway tunnels is large and their flat ratio is low.
youdao
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与铁路隧道相比,公路隧道跨度大,扁平率低,开挖多采用分部法。
Compared with railway tunnels, the span of highway tunnels is large and their flat ratio is low.
youdao