fiting
- 网络排湾族帅哥
fitingfiting
排湾族帅哥
HOT TIME得奖名单专区 - 官方消息 -... ... 乂4人同心唷 DATH 排湾族帅哥 FITing 专属i恋 uujhjj ...
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Grey model is an exponential model, which has high precision to observation data series fiting in with exponential rule.
灰色模型是一种指数模型，它对于符合指数规律的观测数据序列具有较高的精确度。