Conclusion Orthodontic technique of Edgewise brackets is a reliable method to stabilize the loose teeth. Compared with conventional arch bar splint fixation, the Edgewise technique has its unique advantage.

Bottom arch bar plate-enlargement ring

（拱板转向架）下拱板夹板衬圈，涨圈簧

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Concrete arch bar is an ideal roof member which is very suitable for the cold storage buildings.

砼拱板是一种理想的屋面构件，特别适用于冷库建筑。

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Application of Large Span Prestressed Arch Bar in Grain Depot Project

大跨度预应力拱板在粮库工程的应用

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Application of Arch Bar Structure in Cold Storage Building

拱板结构在冷库建筑中的应用

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The Design and Research of the Thin-walled Arch Bar Roof Structure

薄壁拱板屋盖的设计与研究

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Application of founding arch bar splint in treatment of maxillary fracture

铸造牙弓夹板在治疗颌骨骨折中的应用

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Raize to equip the continuous feeding and discharging movement device which can prevent phenomena of stick, arch, bridge and block.

另外，指出了在粉尘治理过程中必须考虑配置防止粘附、起拱、搭桥和堵塞现象的粉尘连续化供排料活动化装置。

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After simulation test and study on the construction of long span stone arch bridge, it is understanded that the combined effect between arch ring and arch center formed in advance is clear and the stress of arch ring is closely related to the process of construction.

施工模拟试验表明，特大跨径石拱桥在分环分段砌筑时，先期形成的拱环与拱架的联合作用明显，拱圈应力与施工过程密切相关。

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Because the main arch and the center line of the bridge in the horizontal projection is misaligned, the deformation and stress distribution of the bridge are very complex.

主拱肋轴线水平面内的投影与桥梁中心线的不重合，全桥的变形和受力情况都很复杂。

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Design and Analysis of Oval Arch Center with Two Joints for Plastic Tent

塑料大棚两铰椭圆拱架设计与分析

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In recent years, the growth period was prolonged and production was increased by planting in the small arch shed covering with plastic film.

近年来，利用塑料薄膜进行生姜小拱棚覆盖提早保护栽培，延长生姜生育期，可显著提高生姜产量。

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A 500-year-old arch door on the Great Wall has been reduced to ruins in north China's Shanxi Province after a strong gale hit last week.

上周，一场罕见大风导致中国北方山西省的长城一座拱门倒塌成为废墟，该拱门已有500年历史。

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We walked under the big gingko trees, just like we were walking under a tree arch door.

我们走在大树下，好象走在树搭建成的拱门下。

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RC-masonry combination arch bridge abandons the disadvantages of conventional masonry arch bridge's falsework type construction, which makes longer construction time, higher cost and against protecting environment.

RC-石砌体组合拱桥摒弃了传统石砌拱桥采用有支架施工造成的工期长，造价高，不利于环境保护的缺点；

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The arch belly gravity dam is a new type of dam. Its upstream face is inclined and it has a belly arch within.

腹拱式重力坝是一种新坝型，坝上游面倾斜，坝内设有腹拱。

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Rupture test studies of the arch belly gravity dam under overloading

腹拱重力坝超载破坏试验研究

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Results Zygomatic arch was an anatomical key for medial skull base and infratemporal fossa exposure. The length of the zygomatic arch and the width of the mandibular fossa were 32.9 ± 2.6 mm and 15.5 ± 1.3 mm respectively.

结果颧弓是暴露中颅底和颞下窝的关键，颧弓长度和下颌关节窝宽度分别为32.9±2.6mm和15.5±1.3mm；

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For high arch dams, the key problems include monolithic stability evaluation, cracking evaluation of dam-heel, reinforcement design of dam-toe and faults of dam foundation, and the value of mechanics parameter of rock mass.

高拱坝结构整体稳定性评价、高拱坝坝踵开裂稳定评价、高拱坝坝趾加固设计、高拱坝基础断层的加固处理及岩体力学参数取值问题为高拱坝设计中的关键问题。

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Carotid sinus and aortic arch baroreflex plays the key role in buffering the fluctuation of blood pressure and keeping blood pressure homeostasis.

颈动脉窦、主动脉弓压力感受器反射是缓冲血压变化，维持机体血压稳态的重要调节机制。

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Rese arch On The Key Technologies' Countermeasures In the Design of Combined Bridges With Prestressed Continuous Beam and Arch

连续梁拱组合桥梁设计关键技术对策研究

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