Ball-model

基本解释

The basic principle of the subsurface sonic tomography technique is described and the abnormal characteristic of sonic speed tomography is also discussed for a ball model.
本文简述了地下声波法的工作原理 ,并从球体异常出发 ,阐述了建立速度层析成像后的异常特征。
On the basis of the ball model and capillary model for pore structures, the pore volume expressions and the relational expressions of fractals for the two models were developed.
依据孔隙结构的球体模型和毛管束模型 ,推导出两种模型的孔隙体积表达式和两种模型分形维数间的关系式。
On the Weak Chaotic of Bouncing Ball Model
模型的弱混沌性
He singled and went to second on a passed ball.
他击出一垒打，再因对方漏接而跑上二垒。
In cricket, the ball is delivered overarm.
打板球时，要举臂过肩掷球。