以下为句子列表：
英文: Analytical expressions and numerical results for the output voltage, current, power, efficiency and power density are given.
中文: 结果表明，这种结构能够用作压电俘能器，将旋转机械能转化成为电能。
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英文: Brushless DC motor of high speed and high power density is the key in the system.
中文: 爲解决无刷直流电动机设计中的非綫性优化问题，提出了使用遗传演算法进行优化设计。
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英文: In order to limit such mutual interference, the operators of the adjacent satellites will follow the Radio Regulations by ITU, to take appropriate measures and limit the power density of the carriers, as well as the antenna size.
中文: 为了限制相互之间的干扰，两颗邻星的操作者会按照国际电联制订的《无线电规则》，对载波功率谱密度和地面天线口径作适当的限制。
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英文: In order to obtain the laser beam with better beam quality, less spot diameter and higher power density in laser manufacturing (LM), Gaussian beam used in LM was transmitted and transformed.
中文: 摘要为了获得光束质量较好、光斑尺寸较小、功率密度较高的、适合激光加工的激光束，对激光加工中的高斯光束进行传输与变换。
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英文: Satisfied with the technical request, the volume and weight of the rotor, moment Of inertia of rotor, electromechanical time cost were reduced, and power density of brushless DC motor was improved by means of calculation.
中文: 在满足技术要求的前提下，通过计算达到了减小电机的体积重量、减少转子转动惯量及机电时间常数、提高无刷直流电动机功率密度的目的。
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