关于gratings的百科

• gratings造句怎么写

• Theseareaberration-correctedholographicconcavegratings.Therearetradeoffsbetweenthesegratings:holographicgratingsproducelessstraylightwhileruledgratingsaremorereflective,resultinginhighersensitivity.Workiniron,suchasgratingsandrails.Suchpolymergrating...
• 2017-03-2011551