ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use;

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；

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ii. Tap water, heating, air conditioning, hot water, coal gas, lipuefied petroleum gas, naturalgas, methane gas, coal/charcoal products for household use;

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；

youdao