研究了近共振增强的四能级系统有机染料溶液中简并的四波混频后向反射波及前向波的位相复共轭特性。
Phase conjugation of backward-and forward-wave produced by degenerate four-wave mixing using a nearly resonantly enhanced nonlinearity in four-level organic dye solutions was investigated.
目的探讨口服复锐明在低场磁共振诊断肝外胆管梗阻病变中的应用价值。
Objective To probe diagnostic value of oral Ferrimage in differential diagnosis of extrahepatic biliary obstructive diseases using low field MR.
目的探讨口服复锐明在低场磁共振诊断肝外胆管梗阻病变中的应用价值。
Objective To probe diagnostic value of oral Ferrimage in differential diagnosis of extrahepatic biliary obstructive diseases using low field MR.
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