给水装置的管线、头、箱及排水管道的定期检查和维修。
Periodical inspection and maintenance of water supply system, supplying pipe, tape and tank, drain pipe.
给水装置的管线、头、箱及排水管道的定期检查和维修。
Check and controlling using and maintenance of equipment according to plan of equipment maintenance.
给水装置的管线、头、箱及排水管道的定期检查和维修。
Check and controlling using and maintenance of equipment according to plan of equipment maintenance.
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