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摘要：路基施工技术难度不大，但工艺比较复杂。
Abstract: : the roadbed construction technology difficulty is not great, but the process is more complex.
youdao
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这一课冗长，但难度并不大。
This lesson is not so difficult as it is tedious.
youdao
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这一课冗长，但难度并不大。
This lesson is not so difficult as it is tedious.
youdao