BULK TRANSPORTATION SYSTEM High pressure cross-country gas pipelines up to 48 inches in diameter.
Oes rhywun wedi dod ar draws hwn? Dydi'r geiriau arferol am "bulk" - "swmp", "crynswth", "llwyth" etc - ddim yn addas iawn ar gyfer "nwy".
System Cludo Nwy ar Raddfa Fawr?
Diolch eto
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