| 释义 |
flat arch
释义
平拱：由相互支撑的楔形石块构成的跨度构件，具有直线或几乎直线的水平内弧和外弧。
例句
1·In this paper, a catastrophe model of sine flat arch jumping bend is established.
文中建立的正弦形扁拱跳跃屈曲突变模型可以清晰地阐明扁拱失稳的物理意义。
2·The main bridge of Dalian Quanshui No. 4 Bridge is a box-section prestressed steel concrete two-hinged flat arch bridge with 88m span and 1/12 rise-to-span ratio.
大连市泉水居住区四号路跨东北路桥主桥是跨度为88米，矢跨比1／12的箱形截面预应力钢筋混凝土双铰坦拱。
3·Make sure the salesperson looks at the shape and arch to figure out what type of foot (high arches or flat feet, for example) you have.
确保销售员看了脚的形状和拱，断定你的脚型是哪一种。
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