Wind tunnel measurement needs much time and costs.
但风洞试验周期长,而且要消耗大量的人力和物力。
参考来源 - 塔桅结构风荷载的数值模拟研究Fan noise is the most primary noise fountain in the continuous wind tunnel.
风扇噪声是连续式风洞最主要的噪声源。
参考来源 - 风洞风扇的低噪声桨叶设计·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
N-COUNT A wind tunnel is a room or passage through which air can be made to flow at controlled speeds. Wind tunnels are used to test new equipment or machinery, especially cars and airplanes. (用于测试新汽车和飞机等的)风洞
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