two-centered arch

The two sailors from Uncle Sam's Navy standing at base of arch are Edmondson ( left) and De Leeuw.

两个站在牌坊上来自山姆大叔国度的海军水兵是埃德蒙森（左）和德-莱乌。）

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Sexto and last, Conseil said, the plectognaths, whose maxillary bone is firmly attached to the side of the intermaxillary that forms the jaw, and whose palate arch is locked to the skull by sutures that render the jaw immovable, an order lacking true pelvic fins and which consists of two families.

康塞尔说：最后第六目是固颚鱼，颚骨是固定在齿颚的颚间骨边上，上颚的拱形骨跟头盖骨缝连接在一起，因而！固定不动，这一目没有真正的腹鳍，共有两科。

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The pointed arch is found between the two.

尖形穹窿介于两者之间.

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A Study on Two Segments Lifting Scheme of Long Span Concrete-Filled Steel Tube Arch

大跨径钢管拱两段法吊装方案研究

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Arch-type roller there are two most basic structure: fixed-and variable type.

弓型滚筒有两栽最根基的布局: 变动 型 和可变型.

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