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Because of the limits of the ship dimension, slipway size and harbor area and size, the slipway and wharf is broken.
船舶下水因船与船台尺度、港湾水域与尺度的限制经常发生船台和码头破坏。
This paper expatiates the notion of image fractal dimension and multi-scale fractal feature, proposes a ship target detection method based on multi-scale fractal feature.
阐述了图像分形维和多尺度分形特征的概念,提出了一种多尺度分形目标检测方法。
Based on the dynamic characteristics obtained with three dimension finite element method, the reduced mechanical model and parameters of lift ship structure can be modified and obtained.
利用三维有限元方法计算的结构动力特性和简化结构动力特性相等的原则修正升船结构简化力学模型,并确定了等效的升船机简化结构模型和系统参数。
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