当运动员在水中快速游动时，它可以减小形阻力。
It reduces form drag while the athlete is swimming quickly through the water.
本文利用现代流体力学计算技术，采用复合形法(COMPLEX)，对八维参量的回转体最小阻力外形进行优化设计。
Based on the modern digital technology of fluid mechanics, the eight-parameter optimum axisymmetric bodies for minimum drag are obtained by using COMPLEX method.
分析了这种新型树状分形冷却通道结构的几何特征和阻力特性。
Secondly, the geometric characteristics and the feature with respect to pressure drop of the new cooling structure were analyzed.
说明了在滑行艇阻力预报中常被忽视的艇形概念及其重要作用。
The concept of hull shape, which is often neglected in resistance prediction of planing hulls, and its important role are discussed.
主要介绍了圆锥筒形零件的阻力成形法、辅助套筒成形法和模具成形法。
The paper introduces the resistance forming, double sleeve forming and die forming for the conical parts.
作者在试验基础上提出了一种用于循环流化床锅炉中的新型冲击式槽形管惯性分离器，它具有高效率、低阻力等优点。
Based on experimental test, a new impact type inertia separator with fluted tubes, with high efficiency and low pressure drop, used for circulation fluidized bed boilers is proposed by authors.
桶形基础采用负压沉贯法施工，与压桩、打桩等施工方法显著不同，且阻力特性受地基性质影响很大。
The bucket foundation suction penetration technique is different from the pile driving technique, and the characteristics of penetration resistance is greatly influenced by the seabed character.
在保证分离效率的前提下，槽形和角形分离件具有流动阻力小的特点。
Warranting the required separation efficiency, trough and angular type separators are featured by low flow-resistance.
现有的资料及文献对O形密封圈产生摩擦阻力的理论计算方法介绍甚少。
The theoretical calculation method for the friction resistance produced by O-sealing washer is seldom expounded in existing referance materials and document.
另外还计算了不同的冰形对机翼升、阻力的影响，结果表明瘤状冰对机翼气动特性的影响最大。
Also the effect of different ice shapes on lift and drag coefficient were assessed. The results indicate that the glaze ice has the most adverse impact on airfoil aerodynamic performance.
滑动板上的两个火线触点为平面形的，使拧装灯泡时阻力小不易损坏；
Two live wire contacting points on the sliding plate are in flat form, which reduces resistance force when the bulb is screwed, and the bulb is uneasy to be damaged.
介绍了圆锥筒形零件的阻力成形法、辅助套筒成形法和模具成形法。
The paper introduced the drag foming, double-sleeve foming and die forming for form conical barrel-type parts.
对滴形扰流柱对透平机械尾部换热及阻力的影响进行了实验研究，讨论了柱体形状及排列方式的影响。
It has been experimentally investigated the effects of drop-shaped pin fins on heat transfer and pressure loss for the blade trailing of turbomachinery.
提出了袋形排在静水和波浪中运行阻力的计算新方法。
A new calculation method is put forward of the running resistance of the round-boom type raft in smooth water as well as in waves.
在该预锻模中，采用阻力墙形式构造飞边槽，采用凸形连皮结构连接多个大变截面。
In the pre-forming die, a resistance wall was adopted to build the flash groove and a convex web structure was used to connect the great varying cross-sections.
另外还计算了不同的冰形对机翼升、阻力的影响，结果表明瘤状冰对机翼气动特性的影响最大。
The results indicate that the glaze ice has the most adverse impact on airfoil aerodynamic performance.
相反，大小分布和颗粒物的分形维数的反冲洗水在确定特定的滤饼阻力和渗透率更重要。
On the contrary, size distribution and fractal dimension of particulate matters in backwash water were more important in determining specific cake resistance and permeability.
研究了强制风冷中空气入口侧三角形肋片边缘形状对散热器换热性能和流动阻力的影响。
The effects of the air incoming velocity and the heat sinks structure on the comprehensive performance were investigated.
研究了强制风冷中空气入口侧三角形肋片边缘形状对散热器换热性能和流动阻力的影响。
The effects of the air incoming velocity and the heat sinks structure on the comprehensive performance were investigated.
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