The printers can also create interlocking mechanical parts , such as gears and cogs .

3D打印机也可以制造出具有连锁机制的零部件，比如齿轮和接榫等。

See also : head-ramming dino had ' gears ' in skull

你还可以阅读：头夯恐龙头骨中有“齿轮”

Some gears covered cycles of as many as 54 or 80 years .

一些齿轮涵盖了长达54年或80年的周期。

The comb 's function is akin to a transmission 's gears .

光梳的作用和传动装置中的齿轮一样重要。

There are probably some special spinning gears inside that are powered by electricity .

在它里面可能有些需要用电驱动的特殊的旋转齿轮。