... fire service ring main 消防环形总水管 fire service main 消防水管 main service 配水总管 ; 维护服务 ; 总配水管 ...
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Provided that in any ship other than a passenger ship the diameter of the fire main and of the water service pipes shall be required to be sufficient only for the discharge of140cubic metres per hour.
但在任何不属客船的船舶上,消防总喉管及消防水管的直径只须足以排放每小时140立方米的水即可。
Model 07-S should be installed at the fire sprinkler service connection to the main line.
型号07-S应该安装在连接到主管道的消防喷淋系统处。
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