| • second order | |
| द्वि: double acting double helical gear double | |
| क्रम: method ranking runtime grade routing run round | |
द्वि तीय क्रम अंग्रेज़ी में
[ dvi tiya kram ]
| • second order | |
| द्वि: double acting double helical gear double | |
| क्रम: method ranking runtime grade routing run round | |