hydrant pipe meaning in English

消防管消防水管路消防水管

Phase 4 is approximately 7 . 5 km of hydrant pipe for the second new terminal
四期是大约7 . 5公里的消防管线，通往第二个新的终端设备区。
The ground already contains quite a bit of jet fuel leaked from older hydrant pipe systems that was not detected by the existing scada instrumentation
地上已经有了许多原先从输油管线中泄漏出来的飞机燃料，都是scada系统没能探测到的泄漏所引起的。
On this base , the paper gave a new way of hydraulic calculation according to the ringed hydrant piping characteristic that there is one region of fire at same time and there is one sprinkle region of hydrant system in the buildings . this method used fem to build mathematic model
在此基础上，针对建筑物同时着火点只有一处而消火栓系统只有一处出水的情况下环状管网的水流特点，提出了一种新的环状管网的水力计算方法，利用有限单元法建立数学模型。