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燃气供应
environ. gas supply The provision and storage of any fuel gas, or the amount of any fuel gas stored, for the use of a municipality, or other fuel gas user (气体燃料的提供和存储,或供市民或其他使用者使用的大量燃料。)
refrig. gas supply
燃气供应: 1 phrase in 1 subject
Nautical1