Download [中国青少年科学总动员]高铁车头设计成子弹头形状是为了?
[中国青少年科学总动员]高铁车头设计成子弹头形状是为了?
[中国青少年科学总动员]高铁车头设计成子弹头形状是为了?
高铁车头设计成子弹头形状是为了减小空气阻力。
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