弓形拱 segment arch; segmental arch; spring arch 弓形湖 banco; crescentic lake; cutoff meander; horseshoe lake; lunate lake; meander l ..
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spring arch clasp 弹簧弓卡环
spring arch design 拱顶支承结构
Cold Spring Canyon Arch Bridge 冷泉峡谷拱桥
arch spring fastening 拱形弹性扣件
arch spring 拱脚
arch spring line 拱的起拱线
coil-spring utility arch 带弹簧多用途唇弓
Bamboo bow of the Spring and Autumn Period: the arch was made of a single piece of bamboo, so it was called monomer bow.
文物：春秋竹弓，弓臂用单根竹材弯曲而成，称为单体弓。
The new arch spring of composite truss arch bridge is used to support the middle truss arch of the bridge and the structural formation and force conditions of the joint of the spring are complicated.
桁式组合拱桥的新拱脚支撑着中部桁架拱，新拱脚结点构造和受力复杂。
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