... beam half-angle 束半张角 entrance half-angle 入射半角 gleam half-angle 束半张角 ...
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half angle of entrance 半进流角
half entrance angle [船] 半进流角
entrance half-angle
入口半张角
以上为机器翻译结果，长、整句建议使用 人工翻译 。
In view of the resistance and propulsion, the load water line, shape of sections, half Angle of entrance, forms of tunnel and their effect on propeller were analysed and compared.
根据我国航道条件就现有浅水拖输艏艉线型形状进行了探讨，从阻力和推进观点出发对满载水线、横剖面形状、半进水角和各种坠洞以及它们对螺旋桨的影响等加以分析、比较。
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