town gas ; domestic gas
... domestic fuel 民用燃料;当地燃料;国产燃料;家用燃料 domestic gas 民用煤气 domestic grade 民用规格 ...
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民用煤气设备 domestic gas installation
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自来水、暖气、冷气、热水、煤气、石油液化气、天然气、沼气、居民用煤炭制品;
ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use;
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