Based upon the shield construction practice in the portal section of South Tube of Yanan Donglu Tunnel, this paper demonstrates the technology for slurry balance shield passing through freezing zone.

本文以上海延安东路隧道南线盾构进洞段工程施工为背景，论述了泥水平衡盾构穿越冻结加固区的施工技术。

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South Africa in order to let the emblem for the future to enlightenment history, decided to use the original "South African union" shield emblem shape.

南非国徽南非为了让历史给未来以启示，决定沿用原“南非联邦”的盾形国徽。

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Slurry shield tunnelling was recommended to bore through water supply tunnel across the Huanghe along the Middle Pipeline of South-to-North water diversion programme.

南水北调中线工程穿黄河输水隧洞推荐采用泥水加压式盾构施工。

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During the call, Bush reportedly confirmed he would visit South Korea in October and discussed the U.S. plan for a missile shield with Kim, said South Korean presidential spokesman Park Joon-young.

CNN: U.S. envoys begin hard sell of missile shield

Washington and Tokyo are working on a joint missile-defense shield, and South Korea is considering the purchase of American SM-2 defensive missiles for its destroyers.

NPR: Bush Calls for Unity, Condemns North Korean Tests

South Korean officials are trying to shield exporters from the stronger won.

WSJ: Asia's Export Face-Off