pilot burner

[]

释义
长明灯
A small service burner, as in a boiler system, kept lighted to ignite main fires.

例句
Walt: Built-in corrosion-resistant draught reducer safety thermocouple with the pilot burner.
(Breaking Bad)
沃尔特：装有防腐蚀的气流减径管，安全的热电偶，以及长明灯。（绝命毒师）