For example, it appears from their brain structure that toothed species are unable to smell.
打个比方，从他们的大脑结构看来，锯齿类鲸不能闻。
A new double toothed roll crusher was studied base on the traditional crashers, and its work mechanism, structure and technique characteristics were introduced.
为了提高破碎机的破碎能力，研制了一种新型高效齿辊式破碎机，介绍了该破碎机的工作原理、组成结构和技术特点。
Dual-piston driven. toothed bar and gear driven, structure is compact, position of assembly is symmetrical. Motion is swift. turning of output axis can be changed through simple reversal of piston.
双活塞推动，齿条齿轮传动，结构紧凑，装配位置对称，动作迅速，通过简单的活塞颠倒可以改变输出轴转向。
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