There he hung, at the front of the train, about two feet above the roadbed.
他悬在火车的前面，离路基大约两英尺。
Clean up the data, find the reality data for analyse the settlement of roadbed.
对观测数据进行整理，找出合理的数据用于分析路基沉降。
The compaction degree is an important index of the roadbed and the road surface.
压实度是路基和路面的一项重要指标。
The ground foundation treatment is the key of the construction of the highway roadbed.
地基处理是公路路基施工的关键。
Therefore, doing well the standard heavy compaction test of the earth roadbed is very important.
由此可见，做好土方路基标准重型击实试验尤为重要。
Abstract: : the roadbed construction technology difficulty is not great, but the process is more complex.
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.
摘要：路基施工技术难度不大，但工艺比较复杂。
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