| • rotating growth step | |
| सर्पिल: spiry helicine spiral cleavage volute colubrine | |
| प्ररोहण सोपान: growth step growtyh step सोपान | |
| सोपान: staircase stair grade episode rung steps stepping | |
सर्पिल प्ररोहण सोपान अंग्रेज़ी में
[ sarpil prarohan sopan ]
| • rotating growth step | |
| सर्पिल: spiry helicine spiral cleavage volute colubrine | |
| प्ररोहण सोपान: growth step growtyh step सोपान | |
| सोपान: staircase stair grade episode rung steps stepping | |
