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Subject: спецификация API 6A- pressure boundary penetrations other equipment: actuators, clamp hubs, pressure boundary penetrations, ring gaskets....
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| вводы в работающие под давлением оболочки/резервуары |
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а вот еще предложение pressure-boundary penetration device that penetrates directly into or communicates with the well-bore and is not defined elsewhere in this International Standard |
| Может pressure boundary penetrators? |
| нет, все правильно написано |
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