The ancient Japanese perfected these construction techniques, which could be studied.
古代日本人完善了这种建筑工艺，可以借鉴学习。
Described in this paper are the construction techniques and quality control measures.
比较详细地介绍了施工技术和在工程质量控制方面所采取的措施。
However, no systematic and complete monographs about construction techniques are ever seen.
然而迄今为止，尚未见有较系统完整的箱式隧道施工技术专著。
However, no systematic and complete monographs about construction techniques are ever seen.
然而迄今为止，尚未见有较系统完整的箱式隧道施工技术专著。
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