|   数据  |       简支梁  |       钢架梁  |    ||
|   温度  |       εjt(με)  |       Kt/Kr(%)  |       εjt(με)  |       Kt/Kr(%)  |    
|   20  |       997  |       100  |       1000.4  |       100  |    
|   40  |       1002  |       100.5  |       997.4  |       99.7  |    
|   80  |       1006  |       100.9  |       994.4  |       99.4  |    
|   120  |       1003  |       100.6  |       991.4  |       99.1  |    
|   160  |       995  |       99.8  |       985.4  |       98.5  |    
|   200  |       984  |       98.7  |       976.4  |       97.6  |    
|   250  |       969.1  |       97.2  |       965.4  |       96.5  |