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远场图法
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远场图法
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多模光纤数值孔径测量
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far field pattern
远场图法
一种光纤数值孔径的测量方法。利用光路可逆性原理用针孔探测器在远场对光纤中导模的出射角进行测量,从而测得光纤的数值孔径的方法。场源距离与发射天线口径及波长的关系满足条件的电磁场区域的场。
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semi-bilinear mapping
semi-bipartite graph
semi bituminous coal
semi-bituminous coal
semi-bounded
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semi-bounded from below
semi-boundedness
semi-bounded operator
semi-bounded transformation
semibreadth
semibreve
semibridging carbonyl
semibridging group
semi-bright coal
semicanonical equations
semicanonical equations of motion
semi-canonical form
semicarbazide
semicarbazone
semi-cardinal
semi-categoric set
semi-centralized air conditioning system
semi-chain module
semi-chain ring
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