日韩午夜免费av.,久久www一区二区三区,欧美成人的性生活视频,中文字幕剧情一区二区三区,久久久久久观看免费,在线不卡成人黄色精品,丰满的少妇xxxxx人妻色,午夜婷婷国产麻豆精品,青青草手机在线视频观看

網球場角度反彈性能測試儀功能：

網球場角度反彈性能測試儀檢測足球成角度反彈的表現
符合標準：

Fifa IRB ITF EN14077 EN15330
One of the requirements for artificial turf surfaces is the ball rebound behaviour under an angle.Deltec developed an Angle Ball Projector to determine this ball bouncing characteristic.The portable pneumatic ball projector launches the ball with exactly 50 km/h at the required 15 degrees angle.The projector is compley self-supporting regarding energy when used in the field,so it can be used under all circumstances.The ball is launched without spin the with a very accurate reproducible speed.The reproducibility exceeds the demands by far.A radar gun (not supplied by Deltec)measures the horizontal speed before and after the ball bounce.The Angle Ball Rebound percentage can be determined with these values.The projector comes with a transport box and energy box.
Your benefits:
Excellent reproducibility
Does not rely on external power
Portable
Ball launch without spin
Precise angle by means of measuring device Exchangeable barrel for different balls
Aplications:Football,Rugby.Tennis
Standards:EN13865,EN15330,FIFA02

上海樂傲試驗儀器有限公司產品售后服務承諾：但凡從上海樂傲試驗儀器有限公司購買的產品均可享受質保一年服務；一年內如有產品質量問題包修包換包退，并可享受終身維護服務。