BACKGROUND: Thoracic outlet syndrome can be divided into nervous system type and vascular type according to different compressed structure.
背景：胸廓出口综合征可因受压的结构不同分为神经型和血管型。
As arch dam is an eccentrically compressed structure, the safety of the dam is primarily determined by the compressive strength of concrete.
作者认为，拱坝是偏心受压结构，坝体安全主要取决于混凝土的抗压强度。
As arch dam is an eccentrically compressed structure, the safety of the dam is primarily determined by the compressive strength of concrete.
作者认为，拱坝是偏心受压结构，坝体安全主要取决于混凝土的抗压强度。
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