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re·ten·tiv·i·ty AHD[rē'tĕn-tĭvʹĭ-tē] D.J.[ˌriːtenˈtɪvɪtiː]K.K.[ˌritɛnˈtɪvɪti]n.（名词）- The quality or state of being retentive.保持性：有保持能力的品质或状态
- Capacity or power of retaining.保持力：保持的才能或能力
- Physics The capacity for remaining magnetized after cessation of the magnetizing force.【物理学】 顽磁性：磁力消失后残存的磁通量
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