根据显示方式和内容的不同，常用于仪器仪表上的液晶显示模块有笔段型和点阵型两类。

According to show the different ways and content, commonly used in the instrumentation on the liquid crystal display modules and a T-point formation of two types.

youdao

切削加工成形后可以进行渗碳处理，用来制造表面硬、中心韧性高的仪器仪表零件及轴类耐磨件。

Cutting processing after forming can be carburizing processing, used to make the surface hard, center of high toughness instrumentation parts and axis wear parts.

youdao