A study of applying modified soybean hull in decreasing water hardness;
改性大豆皮用于降低水硬度的研究
The relation between the property and type of dampening solution and dilute water hardness is introduced, property index (such as pH value, specific conductivity, and surface tension)of dampening solution formulated with water with various hardness is tested through experiment.
概述平版胶印润版液的种类、性能及与稀释用水硬度的关系,并通过实验检测了以不同硬度水配制的润版液的pH值、电导率、表面张力等性能指标,指出水硬度与电导率的关系最密切,应通过检测电导率来控制和监测润版液的性能变化;配制润版液的水硬度为8°,最高不得超过12°。
This experiment was designed to determine the effect of water hardness on the acute toxicity of copper for fry of grass carp(Ctenopharyngodon idellus),silver carp(Hypophthalnichtys molitrix)and loach (Misgournus mizolepis).
实验以草鱼、鲢和大鳞泥鳅的鱼苗为材料,测定了水硬度对铜的急性毒性的影响,水硬度在255、141、37和14mg/L(以 CaCO_3计)时铜对草鱼的48小时 LC_(50)分别是519、354、91和76μg/L,96小时 LC_(50)则分别为460、307、67和39μg/L。
Changes in quick self-hydraulicity of Baosteel different BF slag,changes in strength of different slag at different maintenance temperatures and changes in strength of different BF slag stimulated by clinker are tested in various ways.
通过各种试验测试宝钢不同高炉矿渣的自身快速水硬性变化、不同高炉矿渣在不同养护温度下不同养护龄期强度变化以及不同高炉矿渣在水泥熟料激发下的强度变化,从而分析各种外界因素对其活性的影响程度。
As a new type of building material, the cement soil is composed of cement, soil and water It has the characteristics of not only soil engineering, such as the optimum water content, the maximal dry unit density, but also concrete, such as hydraulicity and strength increasing with time etc.
水泥土作为一种新型建筑材料，它是由水泥、土料和水三种材料构成，它不仅具有土工的一些特点，诸如最优含水量、最大干密度；同时也具有混凝土的某些性质，诸如水硬性、强度随时间增长等；在大量的试验基础上，对水泥土的性能进行分析并得出水泥土的一些性能特点，有助于在岩土工程中的广泛应用。
A new method to determine the hardness of water by xylend orange indication under the (existence) of the cationic surface active agents is reported.
研究了在阳离子表面活性剂存在下,以二甲酚橙为指示剂测定水硬度的新方法,该方法终点颜色变化敏锐,结果令人满意。
This paper deals with the best experimebtal condition of the determinationof the hardness of water by spectrophotometry with Methyl Thymol Blue Complexon(MTB) as chlorophosphosphonsazo, and the concrete formula of Lambert-Beer's Law inthe mixed system of Ca-MTB is calculated.
研究了以甲基百里香酚兰络合剂（ＭＩＢ）为显色剂，用分光光度法测定水硬度的最佳试验条件，导出了朗伯─比尔定律在Ｃａ—ＭＴＢ与Ｍｇ—ＭＴＢ二元混合体系中的具体形式。
Its hydraulicity was studied with pastestrength.
并使用净浆强度、ＳＥＭ显微分析、ＸＲＤ相分析等测试手段研究了氟硫硅钙石的水化特性，结果表明其在特定条件下具有良好的水硬活性，同Ｃ１１Ａ７ＣａＣｌ２及其它铝酸盐矿物共同水化时可以获得良好的水化硬化体。