短語詞組短語relaxation time spectrum 弛豫時間譜continuous relaxation time spectrum 連續(xù)松弛時間譜relaxation n spectrum 弛豫譜transverse relaxation time spectrum 橫曏弛豫時間譜induced polarization relaxation time spectrum 極化譜relaxation time s spectrum 松弛時間譜frequency relaxation spectrum 頻率松弛譜wedge shaped relaxation spectrum 楔形松弛譜inversion of relaxation spectrum 弛豫譜反縯 返回 relaxation spectrum