John was submerged in making the ship model.
约翰专心致志地造轮船模型。
Ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.
通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。
Ship propeller noise can be predicted by non-dimensional analysis of ship model propeller noise.
通过无量纲分析船模螺旋桨噪声可以预报实船的螺旋桨噪声。
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