In this paper, by the model test, authors study some design of support structure system with three-lane road tunnel of small-scale and high-span.

本文针对高跨比较小的三车道公路隧道，结合某工程设计的支护结构体系进行了模型试验研究，并进行了必要的有限元计算分析。

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At the same time, the stability of big-span tunnel with influence factor such as section size, high-span ratio and depth is studied.

同时，论述了大跨度隧道的稳定性以及断面尺寸、扁平率和隧道埋深对稳定性的影响。

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For high availability best practices, a collective should span several zones.

对于高可用性最佳实践，一个集合应该跨几个区域。

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When restless New York City hedge fund manager Robert Fairchild watches the Baltic Dry Cargo Index plunge 97%, registering an all-time high and a 25-year low within the span of just six months, he decides to buy a ship.

FORBES: From the high seas of finance - Shipping Man

There is a high mortality rate -- with an average life span of only 47 -- minimal infrastructure and limited tools for economic development.

CNN: Commentary: A week with the heroes

During the same time frame high-yield bonds slumped 26% and bank loans fell 24%, while 5-year Treasuries gained 16%, according to our research (municipal bonds, another high-quality fixed income asset class, returned 9% over the same time span, as measured by the BarCap 5-year Municipal Bond Index).

FORBES: Are Your Bond Holdings Raising Your Portfolio's Risk Profile?