以下为句子列表：
英文: By the multiple objective optimization, the diffusion angle of the ventilator volutes with high efficiency, low noise and high total pressure of the ventilators was calculated and selected according to the experimental data.
中文: 摘要根据实验数据，采用多目标最优化的方法，对效率高、噪声小、全压大等性能指标皆好的通风机蜗壳扩压角进行了理论计算选择。
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英文: Suggestion: Cinsidering all of the factors synthetically,in order to obtaining a better temperature environ mentwe should use the greenhouse adopted damp curtain ventilator cooling system,the depth(the relative distance between damp curtain and ventilator
中文: 建议：综合诸多因数考虑，为保证温室内有良好的温度环境，拟采用湿帘-风机降温系统的温室，温室的距离（湿帘与风机的相对距离）最好不要超过50米。
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英文: The ventilator inventor's adventure prevented him from venturing revenge.
中文: 通风机发明家的奇遇阻止了他冒险复仇.
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英文: The ventilator is also equipped with wire control switch for controlling the power supply .The product features convenient installation and diversified colors as white,blue,gray and brass.
中文: 还有线控开关控制电源式，安装更方便，颜色多样化，有白色、蓝色、灰色、古铜色。
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英文: Then a specific ventilator was chosen as an example, and by the method of objective functions, the diffusion angle of its volute was calculated and analysed to optimize the operating performance of the ventilator.
中文: 并针对有具体用途（使通风机的流量达到额定值）的通风机，采用目标函数法对通风机综合性能指标最优化的扩压角进行了算例分析。
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