The earliest european segmental arch bridge was built at florence in1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。
The earliest European segmental arch bridge was built at Florence in 1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。 。
The earliest European segmental arch bridge was built at Florence in 1345.
欧洲最早的拱桥是1345年在佛罗伦萨建成的。
Objective To evaluate the clinical curative effect of segmental arch technique in incisor luxation.
目的评价片段弓矫治技术治疗前牙外伤的效果。
Objective: To evaluate the effectiveness of the segmental arch technique in fixing replanted traumatically avulsed permanent teeth.
目的：评价正畸片段弓技术应用于固定外伤脱位再植牙的效果。
A segmental arch bridge, which was built in AD 610 and still stands, made extensive use of iron clamps between the staves of the arches.
一座建造于610年、至今仍矗立的拱桥，就广泛地利用铁钳来加固桥拱桶板之间的联系。
Objective:To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the(dongated opposed teeth for preparing enough space for mandibular dental implant.
目的∶采用种植体支抗直接牵张上颌骨骨缝成骨技术探索颅颌面骨发育不足治疗新方法，观察在牵引力的作用下支抗种植体的骨结合情况。
Objective: To evaluate the effect of segmental arch technique and implant reinforcing anchorage on depressing the elongated opposed teeth for preparing enough space for mandibular dental implant.
目的：探讨片段弓技术联合部种植支抗压低上颌磨牙，为下颌牙缺失的种植修复提供足够的合间距离。
Method and technique of segmental prefabrication, transfer gantry hoisting, splicing on arch timbering in construction of Xinyang Shihe River Bridge are introduced.
介绍信阳狮河大桥采用节段预制，龙门桁车提运，拱架上拼装等施工方法和施工工艺。
Method and technique of segmental prefabrication, transfer gantry hoisting, splicing on arch timbering in construction of Xinyang Shihe River Bridge are introduced.
介绍信阳狮河大桥采用节段预制，龙门桁车提运，拱架上拼装等施工方法和施工工艺。
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