Now it is widely used in a series of small electrical heater such as hair curler, temperature invariable cup, temperature invariable bottle, electrical hot board, dryer, hand warmer and so on.

现已广泛应用于煮水器、汤发夹、保温器、保温瓶、电热板、电汤门、干燥器、暖手器等小型发热电器上。

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At Mr Obama's campaign office in the same town, the welcome is warmer: a seat, a cup of coffee and a list of local Obama-ites to call.

ECONOMIST: Iowa