|   x(mm)  |       理论值(MPa)  |       试样1(MPa)  |       试样2(MPa)  |    
|   −12.00  |       2.85  |       2.95  |       2.51  |    
|   −9.00  |       0.52  |       0.54  |       0.46  |    
|   −6.00  |       0.10  |       0.10  |       0.08  |    
|   −3.00  |       0.02  |       0.02  |       0.02  |    
|   0.00  |       0.01  |       0.06  |       0.01  |    
|   3.00  |       0.04  |       0.03  |       0.04  |    
|   6.00  |       0.19  |       0.17  |       0.24  |    
|   9.00  |       1.04  |       0.94  |       1.31  |    
|   12.00  |       5.69  |       5.15  |       7.19  |