- 筛: sedge
- 骨: bone
- 沟: channel; ditch; gutter; tren ...
- 鼻骨筛骨沟: ethmoidal groove of nasal bone; ethmoidal sulcus of nasal bone; groove for nasal nerve; nasal groove; sulcus ethmoidalis ossis nasalis
- 筛骨沟,筛沟: ethmoidal sulcus
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