1. 折迭扇
1. 折迭扇的输入与仿制
The import and copy of the foldaway fan
2. \u0064\u0061\u006E\u0063\u0069\u002E\u0039\u0031\u0031\u0063\u0068\u0061\u002E\u0063\u006F\u006D
2. 缫折分析方法初探折迭扇的输入与仿制
An Initial Probe to Analysing Cocoon Reeling Ratio The import and copy of the foldaway fan