处理程序能够接受2.0样式表是因为XSLT元素的名称空间uri(统一资源描述符)没有变，只有(必须的)版本号变了。

A 1.0 processor can accept a 2.0 stylesheet because the namespace URI (Universal Resource Identifier) for XSLT elements has not changed for 2.0; only the (mandatory) version number has changed.

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用算符分解算法(AOM)得到了系统的近似解析解，并研究了传动比和时变啮合刚度对拍击门槛转速的影响。

A-operator method (AOM) is used to study the influence of the speed ratio and time varying meshing stiffness on rattling threshold speed of the gear system.

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用算符分解算法(AOM)研究了扭矩波动和时变啮合刚度对拍击门槛转速的影响。

A-operator method (AOM) is used to study the influence of the torque fluctuation and time-varying meshing stiffness on rattling threshold speed of the gear system.

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