| 21. | The generator is hermetically sealed to prevent escape of the hydrogen gas.
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| 22. | A successful oxide removal results in a solid, hermetically tight connection.
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| 23. | It's a hermetically sealed dream of childhood rather than its reality.
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| 24. | One governor sought a sixteen-wheel, hermetically sealed mobile command post.
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| 25. | "It's hermetically sealed in stainless steel shells,"
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| 26. | "I don't believe the border can be hermetically sealed.
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| 27. | Yet few outside the hermetically sealed literary community know who these poets are.
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| 28. | Still, the European Union is not hermetically sealed.
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| 29. | It is a kind of hermetically sealed netherworld, devoid of outside contact.
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| 30. | Formula One drivers are hermetically sequestered from their fans.
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