The morphology of joint surface is one of the key factors affecting shear strength of joint.

节理表面形貌是影响节理抗剪强度的重要因素之一。

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The bonding strength of joint zone made by direct and indirect bonding was evaluated and their fracture characteristics were analysed.

对直接连接和间接连接接头的接合强度进行了评估，并对接头断裂特性进行了分析。

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Results show that high strength of joint and its good hermetization can be arrived by using proper structure and reasonable technology.

研究表明，只要采取适当的结构和合理的工艺，即可获得高强度的接合和良好的气密性。

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It can be caused by a number of factors, including a rapid increase in the frequency of training, sudden increase in the intensity of training, transition from one training method to another, genetic abnormalities of the knee joint and poor base strength of the quadriceps.

BBC: Hargreaves faces career concerns

Obviously part of the role of the Joint Chiefs in the process was to talk to the President about the health and the strength of the force, understanding that a lot has been asked of it over the past eight years.

WHITEHOUSE: Press Briefing