departure area

• 死区

departure area的用法和样例：

例句

1. The CT findings of this tumor revealed a hypodense mass with occasional calcification, a central necrotic area, and a well-defined enhanced wall.
   电脑断层检查肿瘤是呈现低密度，中间有坏死区，偶尔有钙化，及界限清楚且显影不错的壁。