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| 11. | formal wear; a full-dress uniform; dress shoes. |
| 正式穿着；正式制服；正式场合穿的鞋。 |
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| 12. | lapping of the four shafts ball-lapping machine using analytical and graphical methods, and establishes full |
| 摘要根据四轴球体研磨机的球体研磨原理，由实现球体均匀研磨所需的压力和速度条件，对该机的结构参数和运动参数进行了解析和图解分析，建立了实现球体均匀研磨的充分必要条件。 |
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