If your body is not receiving a sufficient amount of sleep, this is a major factor in reducing your ability to concentrate on daily tasks.

如果你睡得不够，你每天的工作就会受到注意力不集中的影响。

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Objective: Platelet-rich concentrate (PRC) is an autologous growth factor preparation that is in routine use for orthopaedic and maxillofacial surgery.

目的：血小板富集浓缩（PRC）是矫形外科和颌面外科领域用来准备自体移植生长因子的常用方法。

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The first antihemophilic factor (AHF) concentrate to treat coagulation disorders in hemophilia patients is developed through fractionation.

第一例抗血友病因子(AHF)经分离浓缩后用于治疗血友病患者的凝血功能障碍。

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