Compared with a pneumatic ball tooth grinder, the electric ball tooth grinder has the advantages of high mechanical efficiency, convenient grinding, non exhaust pollution, non exhaust noise, etc.

与气动球齿修磨机相比具有机械效率高，方便修磨，无排气污染、无排气噪声等优点。

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The utility model is composed of a positioning body, an electric control translucidus cross coordinate board and a positioning ball.

本实用模型由定位体、电控半透明十字坐标板和定位球组成。

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Detector installed in the crane boom end, at the top of the metal ball as a detecting probe, can detect electric field around the wire.

检测器安装在起重机臂端，其上端的金属球作为检测探头，可以检测电线周围的电场。

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When in 1883 Mrs Cornelius Vanderbilt, arrayed for a fancy-dress ball as Electric Light, topped off her satin and diamonds with a large incandescent bulb, it subtracted nothing from the elegance of the scheme.

ECONOMIST: Going out all over Europe, and beyond

But just as Rovers seemed set to push for a winner, they were undone by Berger's through ball which enabled the electric Agbonlahor to burst forward and fire home.

BBC: SPORT | Football | Premiership | Blackburn 1-2 Aston Villa

The Liverpool captain opened Pompey up on 37 minutes with an electric burst of pace before laying the perfect ball in to Emile Heskey's path but the England striker was unable to clip his shot over the advancing Hislop.

BBC: SPORT | Football | FA Cup | Portsmouth 1-0 Liverpool