Heating systems in buildings - procedure for the preparation of documents for operation , maintenance and use - heating systems requiring a trained operator 建筑物供暖系統(tǒng).操作維護(hù)和使用文件編制程序.要求受過(guò)培訓(xùn)的操作員的供供暖暖系統(tǒng)
Heating systems in buildings - procedure for the preparation of documents for operation , maintenance and use - heating systems not requiring a trained operator 建筑物的供暖系統(tǒng).操作維修和使用的文件編制程序.無(wú)需經(jīng)培訓(xùn)人員操作的供暖系統(tǒng)
Heating systems in buildings - procedure for the preparation of documents for operation , maintenance and use - heating systems not requiring a trained operator 建筑物供暖系統(tǒng).運(yùn)行維護(hù)和使用文件編制程序.不需要由受過(guò)培訓(xùn)的人員操作的供暖系統(tǒng)