It is believed that it is of great importance to the study of short arc machining technique, and is valuable to the study of the machining of the hardsurfacing material as well.
该机床的成功研制为短电弧加工技术的深入研究奠定了基础，同时对硬面材料加工研究具有一定的参考价值。
2
While studies of consumer culture go back decades, I'm having a hard time surfacing what is known about the culture of web advertising.