Study on high frequency acoustical performance of a ventilation and sound insulation window using transfer matrix method;

首次利用整体传递矩阵法对机床主轴双转子耦合系统的动力特性进行了详细研究。

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Combined with the window also used in fall, heat preservation, decoration, sound insulation effect more.

结合内开内倒窗同时使用后，保温、装饰、隔音效果更为完。

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Combined with the window also used in fall, heat preservation, decoration, sound insulation effect more.

结合内开内倒窗同时使用后，保温、装饰、隔音效果更为完。

youdao