impact with the ball 中文意思是什麼

impact with the ball 解釋
觸面
  • impact : n 碰撞;沖擊(力);(火箭的)降落[著陸];【軍事】彈著;影響,效力。 The point of impact彈著點。 ...
  • with :
  • the : 〈代表用法〉…那樣的東西,…那種東西。1 〈用單數普通名詞代表它的一類時(所謂代表的單數)〉 (a) 〈...
  • ball : n 鮑爾〈姓氏〉。n 1 球;球狀物。2 球戲,(特指)棒球;【棒球】壞球 (opp strike) 3 【軍事】子彈...
  1. The purpose of the study is to investigate the vibrating impact of racket heads, fixed or unfixed, with different amounts of string tension when striking a tennis ball

    摘要本研究旨在探討網球拍于不同張力狀態下,拍頭固定與未固定受碰撞后,網球拍彎曲或扭曲所耗損之動量沖量。
  2. The impact toughness of the magnets could be improve with appropriate alloying elements addition during ball milling while there was no visible changes to the fracture behaviour, and the coercivity of magnets with al and ti was significantly enhanced

    晶間單獨或復合添加適量合金元素對磁體沖擊韌性均有一定提高作用,但對斷裂模式沒有明顯影響,復合添加ti 、 al能顯著提高磁體矯頑力。
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