In this paper, the concept of strong acute cone is introduced, and the necessary and sufficient condition for existing such cone in a infinite dimensional space is obtained.
本文提出了强锐角锥的概念，并就无限维空间证明了一个凸锥为强锐角锥的必要充分条件。
Acute cerebral swelling can also often produce herniation of the cerebelllar tonsils into the foramen magnum. Note the cone shape of the tonsils around the medulla in this cerebellum.
急性大脑肿胀在枕骨大孔处也经常形成小脑扁桃体疝，注意小脑髓质附近的锥体形状的小脑扁桃体。
Acute cerebral swelling can also often produce herniation of the cerebelllar tonsils into the foramen magnum. Note the cone shape of the tonsils around the medulla in this cerebellum.
急性大脑肿胀在枕骨大孔处也经常形成小脑扁桃体疝，注意小脑髓质附近的锥体形状的小脑扁桃体。
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