engine heater meaning in English

发动机保温箱
发动机加温器

Defa group is comprised of several fields like automotive ( engine heaters , interior heaters and battery charges for cars and trucks ) ; security ( alarm and tracking systems for cars , trucks , motorbikes and boats ) and lighting ( tunnel light , street light , flood light and other decorative light products )
帝发集团下属三个事业部，汽车附件事业部负责汽车发动机预热系统和电池充电器的研发与生产；安保事业部负责汽车、摩托车和轮船的警报器与跟踪系统的研发及生产；照明系统事业部负责研发制造各种隧道灯、路灯、射灯及其它装饰灯具等。
Defa group is comprised of several fields like automotive ( engine heaters , interior heaters and battery ges for cars and trucks ) ； security ( alarm and tracking systems for cars , trucks , motorbikes and boats ) and lighting ( tunnel light , street light , flood light and other decorative light products )
帝发集团下属三个事业部，汽车附件事业部负责汽车发动机预热系统和电池充电器的研发与生产；安保事业部负责汽车、摩托车和轮船的警报器与跟踪系统的研发及生产；照明系统事业部负责研发制造各种隧道灯、路灯、射灯及其它装饰灯具等