蒸汽压力或给水压力下降。
将反渗透给水预处理设备运行方式，以及反渗透给水压力、给水温度等运行参数进行了技术优化。
Technological optimized the operation way of the reverse osmosis supply water pretreatment equipment and the operation parameters of pressure, temperature etc.
LDPE树脂的拉伸强度低，耐压差，刚性差，成型加工时尺寸稳定性差，并且连接困难，不适宜作为给水压力管的材料。
Tensile strength of LDPE resin low voltage differential, rigid poor dimensional stability when processing poor, and connection difficulties, not suitable as a water supply pressure tube material.
目前给水管网普遍存在供水压力不均、管网漏损量大、爆管事故频繁、供水水质不达标等题目。
At present, widespread network of pipes to the uneven water pressure, large pipeline leakage, burst pipes have been frequent incidents, water quality standards are not issues, and so on.
目前给水管网普遍存在供水压力不均、管网漏损量大、爆管事故频繁、供水水质不达标等题目。
At present, widespread network of pipes to the uneven water pressure, large pipeline leakage, burst pipes have been frequent incidents, water quality standards are not issues, and so on.
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