- active residential solar heating system能动式住宅太阳热取暖系统;
- border region边缘区;
- border on邻近,接界;近乎;接壤;濒;
- border line[法] 边界线;
- boiler heating surface锅炉受热面;
- heating system供暖系统,暖气系统,加热装置;
- heating padn.取暖电毯;
- heating elements加热元件
- heating element发热元件,发热器;
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