The body stores minerals in the hard, compact bone.

人体把矿物质储存在坚实的骨骼中。

When this occurs cancellous bone comes compact bone.

当这种情况发生时，松质骨变成密质骨。

When this occurs, cancellous bone comes compact bone.

当这种情况发生时，松质骨变成密质骨。

Results: mandibular canal was formed by a thin layer of compact bone in spongy bone of mandibular bone.

结果：下颌管是下颌骨的骨松质内形成较薄的骨密质骨管。

An external layer of compact Bone surrounds a central area of spongy Bone, except at the marrow cavity.

骨的外层为质密的骨皮质，包围着海绵状骨松质中心区（不算骨髓腔）。