| • exhaust valve • vacuum valve | |
| निर्वात: vacuum exhaust vaccum vacuo sultry | |
| वाल्व: stopcock valve finger hole | |
निर्वात वाल्व अंग्रेज़ी में
[ nirvat valva ]
| • exhaust valve • vacuum valve | |
| निर्वात: vacuum exhaust vaccum vacuo sultry | |
| वाल्व: stopcock valve finger hole | |
