| • pyramid of the second order | |
| द्वि: double acting double helical gear double | |
| पिरैमिड: of pyramids pyramid | |
द्वि तीय वर्गी पिरैमिड अंग्रेज़ी में
[ dvi tiya vargi piraimid ]
| • pyramid of the second order | |
| द्वि: double acting double helical gear double | |
| पिरैमिड: of pyramids pyramid | |
