钻头采用锰钢制造，经过特殊加工处理，适用于各种地质环境。
Bit using manganese steel manufacturing, through special processing, are suitable for all kinds of geological environment.
单层PVC经过特殊改性工艺及表面处理工艺加工而成，可大大减少表面光线反射从而极大提高背投幕布的透光率。
Single PVC layer be improved by special technologies and suface treatment can reduce the reflection of the light, which means the rate of light penetration can be increased.
作者研究采用现有的、成熟的、有价格优势的数控技术，经过一些专门的处理，研发了具备加工这类特殊螺纹功能的低价专用数控车床。
The research adopts existing and mature CNC technique which has advantage in price in producing the low cost CNC turning machine featuring the function of machining these special threads.
应用推荐