1.

1. 顽磁性：retention volume 保留容积 | retentivity 顽磁性 | reticular structure 网状结构

2. 记忆力：retentiveness 保持力 | retentivity 记忆力 | retexture 重新处理

3. 剩磁,顽磁性：retention time 保持时间 | retentivity 剩磁,顽磁性 | rethrascope 尿道镜

4. 保持力：retentiveness 保持力 | retentivity 保持力 | retenue 克制

1. the power of retaining liquid

    e.g. moisture retentivity of soil

    Synonym: retentivenessretention

2. the property of retaining possessions that have been acquired

    Synonym: retentiveness

3. the power of retaining and recalling past experience

    e.g. he had a good memory when he was younger

    Synonym: memoryretentionretentiveness