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

那是一小块刚刚开始形成原始骨骼骨。

" It'd be doin' 'em an unkindness, Hermione, " he said gravely, threading a massive bone needle with thick yellow yarn.

“这对他来说不是一件好事，赫敏，”他严肃地说，用黄色粗纱线穿过一根粗大骨。

Looking inside using X-ray nano-tomography gives us a clue into how spicules develop.

使用 X 射线纳米层析成像技术观察内部，为我了骨如何线索。

The old woman sighed, whipped the wool twice round her thumb, and drew the bone needle through.

老太婆叹了口气， 用大拇指上毛线打了两下， 把骨穿了过去。

Under the microscope, spicules from three different kinds of sponges all have the same crystalline hexagonal structure, like a snowflake.

在显微镜下，三种不同海绵骨都具有相同结晶六方结构，就像雪花一样。

" She was dead, " Varamyr said, wincing as her bone needle pierced his flesh. " Someone smashed her head. Some crow" .

" 她已经死了，" 瓦拉米尔说。她骨刺穿皮肉，他不禁一缩。" 别人砸碎了她脑袋。乌鸦干。"

Even though this basic structure is the same across species, the spicules then take many different shapes, such as pointy needles, branched trees, or spiked spheres.

尽管这种基本结构在不同物种之间是相同，但骨会呈现出许多不同形状， 例如尖、分枝树或带刺球体。

The basic unit of this skeleton is called a spicule, which can be long and sharp or short and chunky, depending on whether the sponge uses it for structure or defense.

这种骨架基本单位称为骨，它可以长而尖， 也可以短而粗，这取决于海绵是将其用于结构还是防御。