| 
                            
                | dk | 最大值=公称 |  
                | 最小值 |  
                | k | 公称 |  
                | 最大值 |  
                | 最小值 |  
                |  | ≈ |  
                |  | ≈ |  
                | n | 最小值=公称 |  
                | 最大值 |  
                | t | 公称 |  
                | 最大值 |  
                | 最小值 |  
                | r | 最大值 |  | 
                                
                                    | 3.5 | 4.5 | 5.5 | 6 | 7 | 8 | 9 | 10.5 |  
                                    | 3.1 | 4.1 | 5 | 5.5 | 6.5 | 7.4 | 8.4 | 9.8 |  
                                    | 1.3 | 1.7 | 2 | 2.3 | 2.6 | 2.9 | 3.3 | 3.9 |  
                                    | 1.4 | 1.8 | 2.15 | 2.45 | 2.75 | 3.05 | 3.45 | 4.1 |  
                                    | 1.2 | 1.6 | 1.85 | 2.15 | 2.45 | 2.75 | 3.15 | 3.7 |  
                                    | 4.5 | 6 | 7 | 8 | 9 | 11 | 12 | 14 |  
                                    | 0.7 | 0.9 | 1.1 | 1.3 | 1.5 | 1.7 | 1.9 | 2.3 |  
                                    | 0.56 | 0.66 | 0.86 | 0.86 | 1.06 | 1.06 | 1.26 | 1.66 |  
                                    | 0.7 | 0.8 | 1 | 1 | 1.2 | 1.2 | 1.46 | 1.86 |  
                                    | 0.7 | 0.9 | 1.1 | 1.25 | 1.4 | 1.6 | 1.8 | 2.1 |  
                                    | 0.8 | 1.05 | 1.25 | 1.45 | 1.6 | 1.85 | 2.1 | 2.4 |  
                                    | 0.6 | 0.75 | 0.95 | 1.05 | 1.2 | 1.35 | 1.5 | 1.8 |  
                                    | 0.3 | 0.3 | 0.4 | 0.4 | 0.5 | 0.5 | 0.6 | 0.7 |  |