Haidilao delivery man Liu Lei rides an electric moped to a customer's house, with two backpacks — one with the food, one with the hot plate, pot and utensils.

海底捞的外卖人员刘磊背着两个背包，骑着电单车来到顾家的房子 —— 一个背包装的食物，另一个装的是热板、锅和用具。

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Gas is certainly the most supple heat source, but if gas pressure is low, it is wise to have one strong electric hot plate for sautes and for boiling large POTS of water.

煤气或天然气的确很容易控制，但气压偏低时，你最好能预备一个大功率的电热炉来炒菜或是烧开大锅的沸水。

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"I'll come back later on to take away your trash," he promises, as he sets up a portable electric hot plate on the table. He snips open sealed vacuum packs of soup to pour into the hot pot.

当他把便捷的电热板在桌子上摆放好之后许诺到：“我一会儿回来取走您的垃圾，”然后剪开真空封密汤汁并倒进火锅里面。

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But in a central neighborhood where luxury apartments stand next to 1920s-era lane houses, Ms. Niu and her husband are crammed under the stairs of an old home in a windowless room that fits little besides their single bed and electric hot plate.

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