查询词典 pitching

On the basis of propulsive model,a mathematical model which is used to describe the motion of pitching and heaving of dolphin's caudal fin by ways of coordinate transformation is deduced.Meanwhile,this model can show the relationship between the motion of caudal fin and parameters related,then the motion of caudal fin of dolphin is simulated by the software of Matlab which showed the swimming principle.

以海豚背腹式摆动推进方程为基础，应用坐标变换的方法，建立了描述海豚尾鳍俯仰－沉浮运动的数学模型，同时建立了描述豚尾各运动参数之间关系的方程，随后运用Matlab的仿真功能再现了海豚在游动过程中尾鳍的运动规律。

The simulation study mainly concentrates on the following aspects: the relations of attack angle versus caudal fin motion, the phase difference of heaving and pitching motion of caudal fin motion, swimming velocity and body motion, body wave length and body motion, heaving amplitude and body motion, Strouhal Number and body motion.

具体研究内容包括：最大击水角度对尾鳍运动的影响；尾鳍摆动—平动运动相位差对尾鳍运动的影响；游动速度对鱼体运动的影响；鱼体波波长对鱼体运动的影响；尾鳍后缘最大摆幅对鱼体运动的影响；斯德鲁哈尔数对鱼体运动的影响。

If you're pitching to well-known names like The Oprah Winfrey Show or big-time print publications, you'll at least have an inkling of where your break could come from so you can plan accordingly, says Drinkwater.

Drinkwater说，如果你遇到像欧普拉脱口秀或者是其他一流的印刷出版商时，你至少需要知道你要从哪里开始，并且制定出相对应的计划。

But GST= 0.156, Nm=1. 588. As a result, the foundation of Youyongchi Avicennia marina population was the result of the migration of hypocotyles and human factors.

这项工作可以为海岸防护林中新引进种类的判定以及为研究种群建立者效应方法的确定提供科学依据。

The two-dimensional CDRC-ADI-FDTD update equations for collision unmagnetized plasma are induced. The unconditional stability of the CDRC-ADI-FDTD formulation for collision unmagnetized plasma is obtained by the examples.

推导了碰撞非磁化等离子体中的二维CDRC-ADI-FDTD迭代公式，并用算例验证了碰撞非磁化等离子体CDRC-ADI-FDTD算法也是无条件稳定的。