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oil supply line /ˈɔɪl səplˈaɪ ˈlaɪn/ n

中文：供油管线

中文 · 供油管线Español · tubo de suministro de petróleoFrançais · canalisation d’alimentation
Meaning：Tube injecting heating oil into the burner and toward the nozzle.
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Oil burner

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