The surface nanocrystallization of a low carbon steel and commercial pure titanium was realized by using high-energy shot peening technique.
本文利用高能振动喷丸技术对低碳钢和工业纯钛进行了表面纳米化处理。
The technique advance of C4 olefin aromatization, catalytic cracking and disproportionation for producing low-carbon olefin were introduced too.
并介绍了C 4烯烃芳构化、催化裂解、歧化制低碳烯烃等新技术的研究进展情况。
A new alloy overlay was prepared by spraying-welding technique on low carbon steel surface.
采用喷焊技术在低碳钢表面获得合金熔覆层。
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