Characteristic according to receiving the spinning ball technology for table tennis,by the analysis to aspect such as judging,moving,receiving,the paper have discussed the countermeasure of technology of receiving spinning ball on table tennis and have improved the mass receiving spinning ball technology.
根据乒乓球回接旋转球技术的特点,通过对判断、移动、回接等方面的分析,讨论了乒乓球运动中回接旋转球技术的对策,解决如何提高回接旋转球的质量。
The article compares the properties of spinning ball with that of non-spinning ball by the example of upper spinning ball,and showed the advantages of the spinning ball in table tennis by analyzing mechanics of main skills in upper spinning ball.
本文以上旋球为例 ,将旋转球与不旋转球的特性加以比较 ,并通过对上旋球主要技术的力学分析 ,说明旋转球在乒乓球运动中的优越性 。
Measurement of eye cyclotorsion and pupil centroid shift during corneal refractive surgery;
角膜屈光手术中眼球旋转和瞳孔中心移位的测量
Research on pupil centroid shift and eye cyclotorsion during laser in situ keratomileusis;
准分子激光原位角膜磨镶术中瞳孔中心移位及眼球旋转的研究
Influencing factors for eye cyclotorsion and pupil centroid shift during LASIK;
LASIK术中眼球旋转和瞳孔中心移位的相关因素分析
Mechanical analysis of revolution of basketball and choice of aiming point in shooting;
篮球投篮中球的旋转及瞄准点选择的力学分析
The rotation ellipsoid model was put forward according to the physical development and space profile of plasma,which lay a theory foundation for plasma three dimension model.
对于等离子体的物理发展过程及空间结构,提出了旋转椭球体模型,对进一步研究、建立微尺度激光冲击强化等离子体三维模型奠定了理论基础。
A knuckle ball.
（球手投出的）不旋转球
a left-arm spin bowler
投左手旋转球的投球手.
Backspin: Reverse spin imparted by striking the ball with a downward movement of the racket.
下旋：向下挥动球拍击出的旋转球，使球回转。
a baseball pitch thrown with little speed or spin.
投手投出的不旋转球。
(eg in golf)strike(a ball)with a slice
（如在高尔夫球中）将（球）击成同侧旋转球.
The spin given to a ball by striking it on one side or releasing it with a sharp twist.
旋球击于球侧使其产生的旋转运动或急速旋转球而放出手去产生的旋转运动
Earth, going round and round, silently, rising the sun, and the moon.
地球啊，默默地旋转，旋转出太阳，旋转出月亮。
the revolution of the earth on its axis round the sun
地球以太阳为轴的旋转.
and put so much spin on the ball,
而且将球旋转得很厉害，
Wheels, tops and the earth rotate.
轮子、陀螺和地球均旋转。
The doctor asked the patient to rotate his eyes.
医生叫病人旋转眼球。
impart spin to a cricket ball
使板球增加旋转力.
whirling psychrometer
旋转式干湿球湿度计
spherical union swivel
球面活管接旋转接头
The earth turns round at a uniform rate.
地球以不变的速度旋转。
The earth rotates from west to east.
地球从西向东旋转。
The earth turns round from west to east.
地球由西向东旋转。
any rotating body has an angular momentum about its center of mass; angular momentum makes the world go round.
角动量使地球在旋转。