Because of the influence of the hull, the stern propeller of a twin-screw vessel is working under condition of oblique flow, and the unsteady working condition of the blade of a propeller is created.
由于船体的影响，双桨船的螺旋桨处于斜向来流的条件下运转。斜流造成螺旋桨叶工作状态的非定常性。
It is also indicated that pretreatment of rice hull powder under acid condition is helpful to improve its thermostability.
酸性条件下预处理稻壳粉有利于提高其热稳定性。
It is also indicated that pretreatment of rice hull powder under acid condition is helpful to improve its thermostabili…
酸性条件下预处理稻壳粉有利于提高其热稳定性。
The effect of the foundation on which blocks stand, maximum allowable stressed area of a wooden block, and the condition of fore and stern hull structures on optimum results are discussed.
讨论了墩木搁置基础、墩木最大容许承压面积及船体首、尾结构强弱对优化结果的影响。
After collision and grounding, the load - bearing capacity of a ship hull is weakened while the floating condition and the external load distribution of the ship may change dramatically.
在船舶发生碰撞和搁浅后，一方而是船体结构承载能力的削弱；另一方面是船舶浮态和外载荷分布的的著变化。
The paper is concerned with two aspects:A necessary and sufficient condition for convex hull of a set in E2 being closed;
本论文以凸体为研究对象，主要涉及两个方面的内容：平面凸集的凸包为闭集的充分必要条件；
The goal of ship optimization design is to obtain the lightest hull weight and the largest cabin capacity, while on the condition that satisfies the requests of strength and general arrangement.
船舶优化设计的目的是在满足强度要求和总布置要求的前提下，使船体重量最轻，舱容最大。
Rice hull was added in the molding of polyurethane foam system and a polyurethane foam material was synthesized. its preparation and degradation in natural condition were studied.
在聚氨酯发泡过程中，加入稻壳，制备了稻壳添加聚氨酯泡沫塑料。
Rice hull was added in the molding of polyurethane foam system and a polyurethane foam material was synthesized. its preparation and degradation in natural condition were studied.
在聚氨酯发泡过程中，加入稻壳，制备了稻壳添加聚氨酯泡沫塑料。
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