同时得出曲轴各个轴承曲拐的应力应变状态，并分析了曲轴在不同工况下的受力情况。
Meanwhile get the state of the stress and deformation of every crankshaft, analyze the case of the stress of crankshaft under different work condition.
依据钻孔设备高速滚珠轴承动态特性的辅助方程，进行了根本变量的分析，得到了各个方程组变量相互耦合的关系图和根本变量。
The paper analyzes the ultimate variables and acquires the relationship and ultimate variables according to the auxiliary dynamic equations of high-speed ball bearing in drilling equipments.
首先研究分析了功率放大器各个部分的工作原理，建立了针对磁悬浮轴承的功率放大器系统的数学模型。
The mathematical model of the digital power amplifier was established. Compare and analyse the digital power amplifier and the the analog power amplifier.
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