Rock mass quality assessment plays an important role in the security for all kinds of large-scale buildings, especially for the underground buildings.

岩体质量的评价对于各类大型建筑物特别是地下工程建筑物的安全性具有十分重要的作用。

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The structural characteristic of rock mass plays an important role in rock mass engineering construction, so correct evaluation of rock mass quality is of great engineering significance.

岩体的结构特征对岩体工程施工有着重要影响，因此，正确进行岩体质量评价对工程设计和建设具有十分重要的意义。

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This paper presents the field estimation on rock mass quality by means of vibrational decrement.

本文介绍了一种在现场用振动衰减系数来估计岩体质量的新方法。

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In the past we could rely on mass production, low quality but low cost.

BBC: Can Wuhan's state-owned giants adapt?

He sees Personal Capital providing a transparent, high-quality, mass-customized service for these investors and moving past the paternal, craftsman-like approach of a full-service brokerage or the assembly-line mentality of mutual funds.

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He said police would no longer be needed by Sunday to oversee traffic at intersections where lights are out and that the return of mass transit will significantly improve quality of life for the city's residents.

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