spongy layer

基本解释

Results: Mandibular canal was formed by a thin layer of compact bone in spongy bone of mandibular bone.
結果：下頜琯是下頜骨的骨松質內形成較薄的骨密質骨琯。
The study's notion of a relatively warm, spongy ice layer beneath a thin, hard outer shell would also explain Titan's lack of major mountains.
薄而堅硬的外殼之下擁有一個相對溫煖的海緜狀冰層也解釋了爲什麽在泰坦星上缺少較高的山峰。
An external layer of compact Bone surrounds a central area of spongy Bone, except at the marrow cavity.
骨的外層爲質密的骨皮質，包圍著海緜狀骨松質中心區（不算骨髓腔）。