| • observation tube | |
| प्रेक्षण: observation viewing | |
| नलिका: catheter pipette pipet pipe manifold duct canal | |
प्रेक्षण नलिका अंग्रेज़ी में
[ preksan nalika ]
| • observation tube | |
| प्रेक्षण: observation viewing | |
| नलिका: catheter pipette pipet pipe manifold duct canal | |
