The parent company of T-Mobile is reportedly taking pre-orders for the iPhone 5, despite the fact that Apple has not announced details on the device’s release, price, or even its very existence.
尽管苹果公司（Apple）尚未公开iPhone 5的发布日期、价格，乃至其是否真的存在，但T-Mobile的母公司据称已经在接受这款设备的预购。
Under the general conditions, we prove the existence of the solution and get the asymptotic expansions of the solution and its derivatives, which are uniformly valid for the higher orders.
在一般的条件下，证明了解的存在性，而且得到解及其各导数的高阶一致有效渐近展开式。
The existence of solution and positive solution is considered for a fourth-order nonlinear elastic beam equation with derivatives of all orders.
考察了含有各阶导数的一个4阶非线性弹性梁方程的解和正解的存在性。
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