以稀土为激活剂的长余辉磷光体，它的余辉亮度主要受原材料配比和煅烧温度的影响。
The brightness of long decay phosphors composed of rare-earth activator depends on the components of the raw material and temperature of fire.
该粒子有较强的弛豫能力，同时具有磷光发射的性质，可用于制备磁共振成像造影剂，实现了双功能。
The particle has stronger relaxation capacity and phosphorescent light emission property, can be used for preparing magnetic resonance imaging contrast agents and realizing dual functions.
该粒子有较强的弛豫能力，同时具有磷光发射的性质，可用于制备磁共振成像造影剂，实现了双功能。
The particle has stronger relaxation capacity and phosphorescent light emission property, can be used for preparing magnetic resonance imaging contrast agents and realizing dual functions.
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