Methods: The anterior button-like buttressing plate fixation system was designed with 317L steel .
方法：用317L不锈钢研制出颈椎前路钮扣钢板螺钉系统。
2
The larger, numbered, button-like electrodes are ECoGs used by surgeons to locate and then remove brain areas responsible for severe epileptic seizures.
较大的、编号的纽扣状电极，被外科医生用于定位并最终切除癫痫病灶。
3
It could purr along like any luxury car or, at a press of the ubiquitous sport button, growl loudly as you disappear down the road.