Water Hardness

Research on Damping Solution Property and Effect of Water Hardness

润版液性能与水硬度的影响研究

Development and Application on Equipment to Reduce Mine Water Hardness with Lime Method

石灰法降低矿井水硬度设备的研制与应用

The Effects of Water Hardness on the Performance of Cutting Fluids

水的硬度对切削液性能的影响

? A measurement method of water hardness based on chemometrics is presented .

提出一种基于化学计量学方法的水硬度的测量方法。

Determination of water hardness with a complex water hardness indicator

水质硬度测定用复合硬度指示剂的研究应用

Development and Application of Water Hardness Analyzer

水质硬度测定仪的研制及应用

Influence of Water Hardness on Clarification of Circulating Water in Coal Processing Plant

水质硬度对选煤厂循环水澄清的影响

Application of optical sensor arrays in water hardness determining

光学传感器阵列在测定水硬度中的应用

Effects of Water Hardness on the Dispersion of Fine Coal and Montmorillonite

水质硬度对煤和蒙脱石颗粒分散行为的影响

The preparation and application of indicator of detecting the supply water hardness of boiler

锅炉给水残硬检测指示剂的研制及应用

The water hardness indicator has been studied .

研究配制了复合硬度指示剂。

It was found that the cloud point was decreased with the water hardness increasing .

随着水质硬度的上升，浊点下降。

Analysis of the Error of Result by Volumetry in Determination of Total Water Hardness

容量法测定水质总硬度时对分析结果误差的分析

Study on the End Point Error of Determination of Water Hardness by Using Complexometric Titration

络合滴定测定水质总硬度的误差来源与消除

Effect of Anion Concentration and Water Hardness on the Foaming of LAS

阴离子浓度和水的硬度对LAS泡沫的影响

This process removes the water hardness .

这一工艺去除水的硬度。

This paper studies the relationship of water hardness and ceramic slip ( such as viscosity , etc. )

研究了水的硬度变化同陶瓷泥浆性能（如：粘度、厚化度、触变性）的关系。

Water hardness and other substance in water also affect the uptake and accumulation of LAS .

水硬度等影响鱼吸收、富集LAS。

The lethal concentration is inversely proportional to pH and water hardness .

半致死浓度Lc50与pH和水的硬度成反比。

The influences of cold water hardness , temperature , velocity on fouling formation were experimentally studied .

考察了水质硬度、温度、流速对结垢过程的影响。

ObjectiveThe different source of the water hardness were measured by the coordination titration .

目的用配位滴定法测定不同来源水的硬度。

The content of different carbonic acid can be checked with pH value and the determining result of water hardness .

各种碳酸的含量可与pH值、硬度的测定结果进行校核。

Acute toxicity of copper to the grass carp , silver carp and loach under different water hardness

在不同水硬度下铜对草鱼、鲢和大鳞泥鳅的急性毒性

The causations of precipitate in bottled health wine were as follows : 1 . high water hardness ;

瓶装保健酒产生沉淀的原因有：（1）水质硬度大；

The water hardness increase because of Ca2 + and Mg2 + increase with the intervene intensity augment .

离子中的Ca~（2+）、Mg~（2+）随干扰强度的增大而增大，从而使水体硬度增大。

The process for controlling DIP grey water hardness with zeolite 4A in Bowater paper mill in Canada was introduced .

本文介绍了加拿大Bowater纸厂利用泡沸石控制脱墨浆废水灰度的情况。

A series of experiments was designed and implemented in order to investigate whether these effects and associated physical changes may cause a reduction of water hardness .

为了弄清瀑布效应和这些物理性质变化是否会减少水的硬度，本研究设计并进行了一系列的试验。

A new Sample-handling apparatus which is a special sample-mixing-coloration - drain system for determination of water hardness was introduced .

报道一种新型水硬度测定的进样装置，它是特殊的直接进样－混合－显色－排液系统，勿需预先显色，可直接进样测定。试样的预处理；

Conventional auxiliaries for washing off reactive dyeings and prints typically counteract the adverse effects of water hardness .

用于活性染料染色与印花洗涤的传统助剂主要是用来抵消硬水的不利影响。

The relationships between the rate of removing thick oil and concentration of surfactants , basic matters , temperature , water hardness , amount of use were also discussed .

研究了表面活性剂的浓度、碱性物质、温度、水硬度以及清洗剂使用浓度等与去油率之间的关系和影响，优选出稠油清洗剂的最佳配方。