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boult , sifter
Pneumatic motor is a kernel part of the roof bolter.
锚杆钻机气动马达是该设备的核心部件。
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Nick, her charming and successful husband, became a bolter.
她赋有魅力而且事业成功的丈夫这时却成了脱僵野马。
And he was a real bolter. He was always off with somebody and then he would come back again.
他总和一些人匆匆出去，然后再匆匆地回来。
The Munster centre or full-back, who won his first two caps last autumn, played no part in Ireland's Six Nations Grand Slam campaign but emerged as a Lions 'bolter' after some strong displays for his province.
BBC: Earls given nod for Lions opener
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