The design idea and structures of the partial enclosures for bowl mill are introduced.

介绍了球磨机局部隔声罩的设计思路和装置结构。

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The reversible Raymond bowl mill is a large one which has been designed and improved by introducing advanced techniques at home and abroad on the basis of the 423216 Raymond bowl mill.

可逆转雷蒙磨粉机是在423216雷蒙磨粉机的基础上，引进国内处先进技术设计改造而成的一种可逆转的大型雷蒙磨粉机。

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An ordinary sieve placed over a bowl or a food mill can take the place of a.

拿一只碗，在上面放个普通的筛子，或是用手磨(mo)(译注二：又称食物研磨器)，跟筒筛有一样的效果。

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His mother worked as a retail clerk and a waitress, and his father, who had ridden the rails during the Dust Bowl days, was a saw filer in a lumber mill, a storyteller, a depressive, and a blackout drunk, who died at fifty-three.

NEWYORKER: Rough Crossings