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4π测量法
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4π测量法
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4π measurement
4π测量法
将放射源置于探测器内部,使源发出的射线能全部进入探测器的灵敏区,即在4π立体角内均能进行有效探测的方法。
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metal-Braun tube
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metal carbene mediated metathesis reaction
metal carbene-mediated metathesis reaction
metal carbene; metallocarbene
metal carbonyl
metal carbonyl cluster
metal carbonyl complexes
metal carbyne
metal carbyne; metallocarbyne
metal catalyst
metal catalysts
metal cathode
metal cationic complex
metal cementation
metal-ceramic
metal/ceramic matrix gradient composites
metal cluster
metal cluster compound
metal coated fibers
metal complex active DNA alkylating agent
metal complex dye
metal complex ion chromatography
metal complex ion chromatography (MCIC)
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