The design is based on the Newton's cradle, which features several identically sized metal balls suspended so that the balls barely touch each other.

该设计基于牛顿摆的工作原理，它的特点是把若干个大小相同的金属球并排地悬挂在一起，并使这些金属球相互之间非常勉强地相互接触。

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Shaking the phone or touch screen will pop a Crystal Ball. The Crystal Balls can scroll, move or bounce on the screen of the mobile phone.

晃动手机或者触摸屏幕就会有一个水晶球弹出来。水晶球可以在手机的屏幕上滚动，移动和弹跳。

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The facilities for the operator vary from push-buttons and/or touch-screens to pull-down menus activated by roller balls and 'enable' buttons.

操作人员的应用 可以通过从 按钮 ，触摸屏 ，下拉菜单 及滚动球或使能”Enable”按钮等等 来实现。

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The Buckeyes, members of the bruising Big Ten conference, also perform an exercise called "eight-man passing" that consists of eight guys sprinting the court for 35 seconds while whipping around two balls that can't touch the floor.

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On the plus side, Hussey immediately served up a reminder of his value to the side with an assured 54 from 43 balls, while Clarke looked in fine touch as he manoeuvred the Kenyan bowling around the park.

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The Tories shot back that it had been the Shadow Chancellor Ed Balls who, as City Minister in the late 1990s, had boasted of light touch regulation and missed a chance to introduce tougher controls.

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