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Sigma - PNG

240×180 1944 424

Omega - science - High Resolut...

1009×1240 1878 401

Micrometer Symbol - measuremen...

256×256 2598 732

Omega Symbol - logo - Lossless...

150×150 2566 645

Epsilon - seventh letter from...

252×459 4092 878

Beta Function - greek letter -...

1000×1000 2606 766

Alpha Symbol - geometric shape...

280×270 4898 1456

Alpha - geometric shape - High...

439×532 2210 447