hard water是什么意思

网络释义

用法例句

Hard water inhibited significantly the growth of poinsettia.

硬水显著抑制一品红生长。

Application properties showed that when pH=7,its dispersing power(lime soap dispersing power is 2%) was the best in different hard water compared with LAS a.

应用性能研究表明,不同硬水中,钙皂分散性在pH=7时均为最优(钙皂分散指数为2%),渗透性随pH的增加而减小,两者均好于LAS和OAB;产品在pH=8时对油酸的乳化性优于LAS和OAB;去污性和泡沫性几乎不受水硬度的影响,当m(NDASPS)∶m(LAS)=1∶2时,其去污值达到66。

The effects of pH and major ions of hard water on growth, water relations, root physiology, and ion content of root and shoot were reviewed .

硬水对盆栽花卉生长的抑制效果十分突出,严重降低产品品质。

The Synthesis of a New Chromogentic Reagent Dibromo-o-Carboxychlorophosphonazo and its Application for the Determination of Hardness of Water and Calcium of Magnesium in Water;

新显色剂二溴邻羧基偶氮氯膦的合成及其应用于测定水的硬度和钙镁含量

Effect of hardness of water on the expansion rate of sea cucumber

水的硬度对海参涨发率的影响

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。

hydraulic cement [mortar]

水硬水泥 [灰泥]

Hard water furs the kettle.

硬水使水壶生水垢。

Equal cleanness in cold, hot or hard water.

适用于冷热水与硬水：。

Hard water furred the kettle.

硬水使水壶生了垢。

determination of stability in hard water

在硬水中稳定性的测定

Hard water which can be softened by adding sodium carbonate is called permanent hard water.

经过加入碳酸钠能被软化的硬水，称为永硬水。

Study on Hydration and Hardening of Natural Anhydrite and Its Activation

天然硬石膏水化硬化及活性激发研究

Rapid harding portland cement

GB199-1990快硬硅酸盐水泥

cement asbestos board

石棉水泥板，硬石棉板

A small globular piece of hard candy.

水果糖小的球形硬糖

She cleaned the sink with a stiff brush.

她用硬毛刷清洗水槽。

This process removes the water hardness.

这一工艺去除水的硬度。

A flat disk of metal ready for stamping as a coin; a coin blank.

硬币坯，金属坯打上戳记后用做硬币的一种水平金属圆片；硬币坯

Able to set and harden under water, as Portland cement.

在水中变硬的能在水下定型并变硬的，如波特兰水泥

The degree of hardness or the water hardness you will get to know from your responsible waterwork.

水质硬度可以通过水质测试仪测得，上述水硬度单位为德国度。

A hard biscuit or bread made with only flour and water.

硬饼干仅用面粉和水制成的硬饼干或面包

Hydration and Hardening Characteristics of Anhydrite Binder Modified with Slag

矿渣改性硬石膏基胶结材水化硬化研究

Influence of Na_2C_2O_4 on hydration and hardening of anhydrite and its action mechanism

Na_2C_2O_4对硬石膏水化硬化的影响及作用机理