| 摘要 |
THERMALLY INSULATED PIPELINE (T) COMPRISING FROM THE INSIDE TO THE OUTSIDE: -A FIRST SEALED PIPE (1), -A FIRST THERMAL INSULATION LAYER (2), -A SECOND SEALED PIPE (3), -A SECOND THERMAL INSULATION LAYER (4), -A BALLAST (5), AND -A SEALED, IMPACT-RESISTANT PROTECTIVE CASING (6).
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