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- planetary ball swaging 行星式钢球冲击缩管机
- The technical method and milling mechanism of ductile metal were investigated by using the planetary ball miller and wet lapping method as well taking plumbum as the typical ductile metal. 采用行星式球磨机和湿式研磨法,以铅为对象探讨了制备软金属纳米粒子体的工艺方法和研磨机理。
- The mechanical method of manufacturing nano-sized quartz powder is introduced with the properties and grinding characteristics of quartz sand and the principle of high-energy planetary ball mill. 本文在简要地介绍石英砂的性质及粉碎特性的基础上,通过分析行星式高能球磨机的工作原理,提出了采用机械法制备石英纳米粉的方法;
- In order to obtain the kinetic model of wet grinding powdered whiting in the planetary ball mill,the process of wet superfine grinding of powdered whiting was studied by the BS model. 为了获得行星式球磨机中重钙的湿法超细粉碎动力学模型,用BS模型研究了重钙的湿法超细粉碎过程。
- DRY METHOD PREPARATION OF COAL PULVERIZED POWDER BY PLANETARY BALL MILL 行星球磨干法制备煤超细粉研究
- He singled and went to second on a passed ball. 他击出一垒打，再因对方漏接而跑上二垒。
- Granulation of ceramic corundum abrasives by dry process with planetary ball mill 陶瓷刚玉磨料行星磨干法造粒研究
- In cricket, the ball is delivered overarm. 打板球时，要举臂过肩掷球。
- Children love to ball snow up in their hands. 小孩子们喜欢将雪在手里做成球儿。
- He lay back and hit the ball for four. 他向后弯身击中球，得了4分。
- She came out of her room equipped for the ball. 她盛装从房里出来预备到跳舞会去。
- The loss of the ball game stir up much feeling. 球赛输了引起了极大的愤慨。
- The pitcher tends to pitch the ball too high. 这个投球手常把球掷得过高。
- Smith tied into the ball for a home run. 史密斯猛击球取得本垒打。
- He swiped at the ball and missed it. 他向球猛击，但未打中。
- The ball hit the wall and bounced off it. 球打在墙上又反弹回来。
- The ball is filled with gaseous mixture. 那个球充满了气体混合物。
- A flat-faced swage or hammer used by blacksmiths. 平整工具铁匠用的一种平面铁模或铁锤
- I cut up the meat for cooking meat ball. 我把肉剁碎后做肉丸子。
