【物理】铃式气体电表（拄塞型气体电表）【化学】钟形煤气表（滑阀类煤气表）

low pressure bell-type recording flowmeter

bell-type annealing furnace

bell furnace【机】;bell-type furnace【机】;

bell-type furnace

bell-type furnace metal wire, metal strip

bell-type manometer【仪】

bell-type low pressure manometer