In fact, the high-definition plasma screen had no more effect than the blank wall, "the researchers said in a statement."
在一个报告中研究人员指出，事实上，看向高清屏幕和白墙没什么区别。
The key problems of technique for plasma hardfacing for sealing face of valve such as blank making. Process selecting and quality controlling.
就阀门密封面等离子弧堆焊的技术关键问题：毛坯加工、工艺选择及质量控制等。
Welded pipe that bended by hot bending method with a set of specific die and welded by plasma arc welding method was used as tubular blank of SPF.
采用焊管作为管坯 ，焊管弯曲采用专用模具热弯 ，焊接采用等离子弧焊。超塑成形采用多层模结构 ，用模具来控制波形。
Welded pipe that bended by hot bending method with a set of specific die and welded by plasma arc welding method was used as tubular blank of SPF.
采用焊管作为管坯 ，焊管弯曲采用专用模具热弯 ，焊接采用等离子弧焊。超塑成形采用多层模结构 ，用模具来控制波形。
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