关于len的百科

• aperture len造句怎么写

• ThispaperdealswithaninvestigationofintensitydistributionofthepartiallycoherentBesselbeamsfocusedbyanaperturelens.Thispaperfocusesonfourmaintypesofaxial-symmetricalelectrostaticlens:filmaperturelens,double-cylinderimmersionlens,convexlensandimmersiono...
• 2016-11-2615460