针对7ypj型农用三轮汽车齿轮箱体的结构特点，应用模态分析理论对其进行了约束模态的有限元分析。
Finite element analysis for constraint model was conducted on the gear box casing of 7ypj agricultural tricar using modal analytic theory according to its structural characteristics.
间冷式电冰箱箱体结构中存在流动换热的结构，这一特点决定了该类电冰箱箱体模型的建立与求解有别于直冷式。
The establishment and solution of cabinet models of indirect cool refrigerator are different from that of direct cool refrigerator.
间冷式电冰箱箱体结构中存在流动换热的结构，这一特点决定了该类电冰箱箱体模型的建立与求解有别于直冷式。
The establishment and solution of cabinet models of indirect cool refrigerator are different from that of direct cool refrigerator.
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