One reason people lose track of time when posting on various social media sites, such as blogs, forums, news engines, and social networks, is because such participation actually is highly addictive.

人们穿梭于不同的社会化媒体网站时，比如在博客，论坛，新闻引擎和SNS上分表东西时，都会忽略时间。 而导致这一结果的一个原因就是，这种参与事实上真的很容易上瘾。

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Probably this happens more often because of typos in URLs than for any other reason, but link rot, back-end misconfiguration, URL mangling at various points, and other causes contribute.

比起其他原因，这类寻找更多地是由于 URL 的拼写错误而致，但链接过时、后端的错误配置、不同点的 URL 残缺等因素也不容小觑。

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Because various reason such as: Nonlinear, asymmetry of material, complexity of damping mechanism, and be hard to make certain of coupling, making a accurate calculating is subjected to restrictive.

由于多方面的原因，如：非线性因素、材料的不均匀性、阻尼机理的复杂性，再加上联结刚度难以确定等等，使得有限元计算的准确性受到限制。

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