The author also specified the improved Ping Pang net-ball rule would contribute to the sports itself fairness,esthetic and continuity.
采用文献资料、逻辑分析等方法,认为现有的乒乓球发球擦网的规则值得商榷,据此提出了修改意见,并指出规则的修改更有利于乒乓球运动的公平性、观赏性和连续性,有利于乒乓球运动的更好发展。
She hardly get lets off her serve.
她发球时几乎没有擦网球。
If you hit a let,you can serve again.
如果你打了一个球擦网球，你可以再发一次球。
What will happen if it was the first attempt?
如果擦网球是第一发球时出现的，那么该队员还有几次发球机会？
Demonstration on the Feasibility to Eliminate Let Rule When Touching the Net in Service in the Game of Table Tennis
对乒乓球比赛中取消发球擦网重发球规则可行性的论证
Experimental Study on Friction of Different Soles Patterns of Tennis Shoes and Marathon Shoes
网球鞋与马拉松鞋鞋底摩擦力的实验研究
Parameter Analysis of Single-layer Spherical Lattice Shell With FPS
摩擦摆支座在单层球面网壳结构隔震控制中的参数分析
His bat just tipped the ball.
他的球棒只是擦到了球。
Keeping Continuity and Enhancing the Enjoyment of Table Tennis Match--Thinking of Amending the Regulation of Service In a Let--Net in the Laws of Table Tennis.;
保持乒乓球比赛连续性提高可观赏性——发球擦网重发球规则修改思考
Foul tip: A ball that barely touches the bat before continuing to the catcher.
擦棒球：在接手接到球前，球只是轻轻擦到棒体。
She sponged the boy's face.
她用棉球给孩子擦了擦脸。
a squash racket, ball, court, game
墙网球的球拍、 球、 球
The ball glanced off the edge of his bat.
球从他的球拍边缘一擦而过。
New Knowledge on the Friction Role of Rackets to Ball in Table Tennis;
对乒乓球运动中球拍与球摩擦作用的新认识
volleyball, tennis for example.
比如排球，网球。”
the act of hitting a tennis ball with a tennis racket.
用网球拍打网球的动作。
"Tennis, polo and field hockey."
网球，马球和曲棍球。
A net ball is when the ball hits the net,but doesn't go over it.
落网球就是发球时球触网而没过网。
I'll dry my ball off and try to knock them all down as well.
我要把球擦干，试着也打出一次全倒。