world champion of the ball ball ball in segments for the game of football with outside the flags of states of the world with which is the emission of sound

• 1. 一种页岩气分段压裂用井口捕球器及捕球方法 [P] . 中国专利： CN110284848B . 2021.07.20
• 2. 一种低速钢球磨分段式加球装置及方法 [P] . 中国专利： CN111468250A . 2020-07-31
• 3. the sphere of the ball in segments for the game of football with outside the flags of states of the world with which is the emission of sound [P] . IT216419Z2 . 1991-07-31

  机译： 足球比赛中球的分段，与世界各州的国旗一起发出声音

• 4. Training device for games with a small ball or a large ball (ball games), particularly for football [P] . 瑞士专利： CH619369A5 . 1980-09-30

  机译： 带有小球或大球的比赛（球类比赛）的训练装置，尤其是足球比赛

• 5. Table ball game assembly - is suitable for football, basketball or volley-ball and is fitted with ball striking elements actuated by operated lever [P] . 法国专利： FR2462177A1 . 1981-02-13

  机译： 桌上球游戏组件-适用于足球，篮球或排球，并配有由操作杆致动的击球元件

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• 3. Real-Time Ball Position Measurement for Football Games Based on Ball's Appearance and Motion Features [C] . Masaki Takahashi, Yuko Yamanouchi, Toshiyuki Nakamura International Conference on Signal Image Technology Internet Based Systems . 2015
• 4. An investigation of Scholar -Baller and Non Scholar -Baller Division I football student -athletes' academic, athletic, intrinsic motivation and athletic identity. [D] . Rasmussen, Janet M. 2009
• 5. Don’t Turn Blind! The Relationship Between Exploration Before Ball Possession and On-Ball Performance in Association Football [O] . Thomas B. McGuckian, Michael H. Cole, Geir Jordet, -1
• 6. A Field Experiment on Recognition of Game Situations in Ball Games : In the Case of Static Situations in Rugby Football [O] . Akira Nakagawa 1982

• 1. Ball,Ball! [J] . 乐乐姐姐 . 课堂内外（小学版） . 2018,第001期
• 2. GRAPHICAL COMPUTING METHOD ON FOUR-BAR LINKAGE(1)——Inflexion Circle,Focal Axis,Ball’s Point,Centering-point Curve and Circling-point Curve For Four ISPs,Coupler Curves Based on Ball’s Points—— [J] . 周晋康 . 苏州大学学报：工科版 . 1992,第0S2期
• 3. Research on the Internationalization Trend for the Development of Worldwide Competitive Ball Games and Our Countermeasures [J] . Yixin Ma . International Journal of Technology Management . 2015,第008期
• 4. 业余足球比赛中守门员防守传中球的研究 [C] . 许明浩 . 第四届首都青年学者运动训练学理论与实践发展论坛 . 2011
• 5. 对我国102位乒乓球世界冠军的握拍方式及打法特点的研究 [A] . 尹俊尚 . 2016