spiral distributor是什么意思

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用法例句

Bacteria regrowth in distribution system is an important factor for drinking water pollution.

配水管网中细菌繁殖是钦用水二次污染的重要方面。

However,recent results have shown that phosphorus determines also the extent of bacterial regrowth in distribution system.

研究了配水管网中AOC含量(40。

Study on forecasting concentration of residual chlorine in water distribution system;

针对饮用水余氯监测数据的滞后性问题,运用多元线性回归模型,建立了管网末梢的余氯浓度和加氯量等5个自变量之间的线性关系,通过数据分析软件SAS对华北某新区配水管网2002年9月至2002年12月共4个月的监测数据进行了回归分析,并对2003年4月的余氯浓度进行预测。

The important role of the digital analysis platform for water distribution network in the switching from old water source to new water source and the optimized dispatching was described.

阐述了配水管网数字分析平台在城市新老水源切换及优化调度中的重要作用。

A systematic investigation is made on the problems which are related to the optimal control of the municipal water distribution network.

系统研究了城市配水管网优化调度所涉及的主要问题——用时间序列三角函数分析法建立了城市用水量短期预测数学模型 ;用管网构造法建立了基于管网供水量的管网性能宏观模型 ;从安全经济的角度提出了管网优化调度模型 ,并运用混合离散变量组合型算法进行了求解 。

By means of statistic analysis to time series sampling of monitoring node pressure of water distribution network, the seasonality, trend and randomness are generalized.

利用时间序列分析手段及动态建模方法建立了配水管网测压点的动态预测模型 ,利用加权递推最小二乘法 ( RLS)解决了模型参数的动态估计问题 。

Changes of organic substrates in the drinking water distribution system and it s effect on bacterial regrowth;

配水管网中有机营养基质的变化规律及对细菌再生长的影响

The changes of turbidity,pH,disinfectants residual and heterotrophic plate count(HPC) in drinking water distribution system were investigated.

试验研究了配水管网中常规水质指标随输水距离延长的变化规律以及与细菌再生长的相互关系。

The relation between the AOC concentration and bacterial regrowth in the drinking water distribution system was investigated in order to obtain the AOC criteria.

研究了配水管网中AOC浓度与细菌再生长的关系,以确定控制细菌再生长的AOC标准。

A model of residual chlorine decay in drinking water distribution system has been developed,with considering the consumption of chlorine as it reacts with chemicals in bulk water, the reaction of chlorine with biofilms on the pipe wall, the consumption of chlorine in the cormsion process, and the mass transport of chlorine form bulk water to pipe wall.

结合配水管网的水力分析与计算，给出了配水管网中余氛浓度的计算公式。

The paper is about the theoretical and practical research on the reasons why a distribution pipeline has demolished for many times, provides an economical and effective protection technique and an effective and reliable engineering method concerning demolition analysis and its protection technique in distribution pipeline.

对某埋地配水管路多次爆破的原因进行了理论和实际探讨，并给出了经济、有效的防护技术措施；为配水管路爆破分析及防护技术提出了一种经济可靠的工程技术方法。