The shoulder is a complex joint which consists of sternoclavicular joint, clavicle, acromioclavicular joint, scapula, glenohumeral joint, proximal humerus and scapulothoracic joint.

肩关节是由胸锁关节、骨、锁关节、胛骨、肱关节、骨近端以及肩胛胸壁关节共同组成的复杂结构。

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MQL provides a powerful expression ability to query data from complex models, such as a left inner joint query against model objects.

MQL提供一个功能强大的表达能力用于从复杂模型中查询数据，例如一个基于模型对象的左内联查询。

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Also the new algorithm improves the automatization of phase unwrapping by avoiding complex pole joint.

而且新算法避免了复杂的极点连接，提高了位相展开的自动化程度。

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Pyongyang says it may also prevent access into or out of a joint industrial complex in the North Korean city,Kaesong, potentially trapping hundreds of South Korean business managers there.

VOA: standard.2010.05.27

Until now, operations at the joint complex have been normal despite the rise in tensions.

BBC: North Korea cuts military hotline with South

The hotline is used to facilitate the travel of South Korean workers to a joint industrial complex in Kaesong.

BBC: North Korea cuts military hotline with South

Seoul has said the purpose of the complex was to develop a joint industrial park where South Korean companies could manufacture their products using North Korean labour.

BBC: North Korea workers fail to turn up at Kaesong