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- mechanical wave resistance 机械波阻
- A vibration source and a medium are needed to form a mechanical wave. 机械波的形成需要振源和介质。
- This will minimize the frontal resistance as well as reduce wave resistance produced by the swimmer. 这将最大程度地减少前端阻力又会减少游泳运动员产生的波浪阻力。
- Supposition of two vibrations with same frequency and direction, condition generated mechanical wave, dynamic equation of plane harmonic wave. 同方相同频率的两个简谐振动的合成;机械波产生的条件;平面简谐行波的运动学方程。
- The effects of ship form parameters on wave resistance of SWATH are analyzed, and the select method of the parameters during ships design is presented. 讨论分析了船型参数对SWATH兴波阻力的影响,提出了船舶设计过程中对船型参数的选择方法。
- As a shipbuilder, Cockerell was trying to find a solution to the problem of the wave resistance which wastes a good deal of a surface ship's power and limits its speed. 作为一个船舶技师，科克雷尔在寻找解决波浪阻力的方法，因为波浪阻力浪费掉了船在水面行驶的大量动力，从而限制了船的速度。
- This is an achievement of a new technique for flood fighting with the features such as prevention of flood overtopping, wave resistance and quick installation etc. 这是一项防止洪水漫顶、抗御风浪、快速有效的新技术成果。
- Energy of simple vibration, supposition of two vibrations with same direction and frequency, generation and propagation of mechanical wave, physical quantities described mechanical wave, plane harmonic wave. 简谐振动的能量;同方向同频率两谐振动的合成;机械波的的产生与传播;描述机械波的物理量;平面简谐波。
- This paper uses the variational method to calculate the configurations of projectile nose with the minimum drag under the conditions that the sum of nose wave resistance and frictional resistance satisfies the extremes (Euler equation). 本文通过变分法,在同时考虑弹体头部波阻、摩擦阻力二音之和满足其极值条件(欧拉方程)时,得到了最小阻力的头部外形。
- By applying vibrations to the liver, MRE obtains images of the mechanical waves passing through the organ. 对肝脏振动的同时，MRE可获得机械波穿透器官后所成的像。
- This confirms the idea that the mechanical waves generated from the convection zone are not very effective in heating the chromosphere and corona. 这就证实了一些人认为的对流层机械波并不是一个对色球和日冕的有效加热机制的说法。
- This paper reviews the history of electromagnetic wave resistivity logging and discusses its application in wireline logging. 本文回顾了电磁波电阻率测井发展的历史，讨论了它在电缆测井中的应用。
- small amplitude mechanical wave equation 小振幅机械波动方程
- Chopped wave resistance welding power source 斩波阻焊电源
- Full wave resistance welding power source 全波阻焊电源
- The resistances which the mobile in fluid suffered are friction resistance,viscosity resistance and wave resistance, different method of decreasing resistance fitto different resistance. 流体中运动物体受到的基本阻力由摩擦阻力、粘压阻力和兴波阻力组成,不同类型的阻力有不同的减阻方法。
- Is this equipment tested for mechanical aptitude? 这台设备测定了其机械适应性了吗？
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- Analysing spectrograms,judging what the mechanical waves or drawing waves are,calculating their wavelength,finding the defective parts and being necessary to control them effectively. 分析波谱图,判断机械波和牵伸波,计算其波长,找出缺陷部件,并有效加以控制。
- Bill wave his hand to us and then drive away. 比尔向我们挥手告别后开车走了。
