Secondly, in the form of powder, graphene can be stably produced with less than three layers without functional group on the surface.
在粉方面，已可稳定生产制作表面无官能基且层数少于三层之石墨烯粉。
The sign of stable continuous casting is that the high quality continuous casting strands is stably produced at designed casting speed.
连铸稳定态的标志是以设计拉速能稳定地生产出质量优异的连铸坯。
Crankshafts of as cast pearlite ductile iron have been produced stably by double random inoculation.
通过二次随流孕育，稳定生产铸态珠光体球铁曲轴的生产工艺。
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