 |
| |||
| time of first downhole datum; ultrasonic time of flight diffraction | |||
| time of flight diffraction technique (ГОСТ Р ИСО 5577-2009 Ультразвуковой контроль Post Scriptum) | |||
|
| |||
| time of first downhole datum; ultrasonic time of flight diffraction | |||
| time of flight diffraction technique (ГОСТ Р ИСО 5577-2009 Ультразвуковой контроль Post Scriptum) | |||