None of them have crazy saw-blades in their mouths, but they're the closest living relatives of this ancient predator.

它们的嘴里都没有疯狂的片，但它们是这种远古捕食者现存最亲近的亲戚。

Some of them looked like little fans, or saw blades, or even barbed wire, but most of them looked like cone-shaped teeth.

有的像小扇子，有的像片，有的像铁丝网，但大部分像的牙齿。

Some are used as a single crystal, while others are ground into a fine powder and applied to saw blades and the tips of drills.

有些被用作单晶体，而另一些则被磨成细粉并应用于片和钻头的尖端。

The saw gave forth a single sluggish twang that ceased with lifeless alacrity, leaving the blade in a thin clean curve between Luster's hand and the floor.

子发出一声迟缓的齿声， 随着死气沉沉的敏捷而停止， 片在勒斯特的手和板之间留下一条细细干净的曲线。