pilot light
柯林斯词典
1. N-COUNT A pilot light is a small gas flame in a gas stove, furnace, or water heater. It burns all the time and lights the main large flame when the gas is turned fully on. 指示燈
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1. N-COUNT A pilot light is a small gas flame in a gas stove, furnace, or water heater. It burns all the time and lights the main large flame when the gas is turned fully on. 指示燈