Alright, primary bone tumors can be divided up into ones that are most often benign, and those that are more often malignant.

好，原发性骨肿瘤可以分为常为良性特征的肿瘤与常为恶性特征的肿瘤。

That's a little spicule of primary bone just beginning to form.

那是一小块刚刚开始形成的原始骨骼骨针。

So along the edges you can see how bone actually uses what was left behind by the calcified cartilage as the scaffolding to build the primary bone on.

所以沿着边缘你可以看到骨骼实际上是如何使用钙化软骨留下的东西作为建造主要骨骼的脚手架。

We know we begin with calcified cartilage that will form into primary bone and then mature into secondary bone and then eventually develop into something called dense haversian bone.

我们知道我们从钙化软骨开始，它会形成初级骨，然后成熟为次级骨，最后发展成一种叫做致密哈弗斯骨的东西。