恰在肘弯下方，肱动脉两个分支中较小的一支，它沿前臂的桡侧行至腕部，然后向后绕过腕的外侧，在第一第二掌骨之间进入手掌，形成掌深弓。桡骨是人类前臂靠拇指一边的骨或鱼类以上的脊椎动物前肢的相应部分。
桡骨 [解剖] radius
桡动脉 [解剖] radial artery ; radial
桡神经 radialis ; [解剖] nervus radialis
桡足类 Copepoda
肱桡肌 [解剖] brachioradialis ; brachioradialis muscle
桡骨下端骨折 Colles Fracture ; fracture of the distal radius ; Fracture of lower end of radius
桡骨头 radial head ; [解剖] Caput radii
桡骨远端骨折 distal radius fracture ; fracture of the distal radius ; distal fracture of radius ; radial fracture
桡骨骨折 radius fractures ; radial fracture ; Fracture of radius ; fractures of the radius
另一群以桡脚类动物（小型甲壳类动物）和虾为食。
the other group feeding on copepods (small crustaceans) and shrimp.
浮游动物包含各种各样的小生物体，从单细胞原生动物到水母、磷虾和桡足类动物，为海洋食物链提供了基本的链接。
The zooplankton, which encompass a wide range of little organisms from single-cell protozoa to creatures such as jellyfish, krill and copepods, provide the basic link in the ocean food chain.
桡——这张卡片是要让你知道，纵使时光荏苒，我却爱你如初。
This card is to let you know that I still love you after all of these years.
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