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| [1] | 陈景标,杨东海.计量学报,1998,19(2): 94～100. |
| [2] | Chen J B,Wang F Zh,Wang Y Q et al.IEEE Trans Ultra Ferro Freq Contr,2000,47(2):457～460. |
| [3] | 吴文国.激光与光电子进展,2001(4):11～13. |