混凝土压缩层有树的地方被设计成窗孔结构。
The concrete compression layer is perforated in areas with trees.
方法：采用干性颅骨18具，福尔马林固定的头颅标本12具分别进行骨窗及乳突孔的定位测量和桥小脑角结构距骨窗的距离测定。
Methods: The location of bony "window" and mastoid foramen were studied , and the distance from bony "window" to cerebellopontine angle was measured on 18 dry and 12 wet cranial bones.
扫描电子显微镜显示细胞表面存在大量微绒毛和窗孔样结构。
Scanning electron microscopy demonstrated that there were many microvilli and fenestrations on cellular surface.
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