petrographic microscope

en-US/ˌpɛtɹəˈɡɹæfɪk ˈmaɪkɹəˌskoʊp/
en-GB/pɛtɹəʊɡɹæfɪk ˈmaɪkɹəˌskəʊp/

Kategori:

optical microscope