water n. 1. 水,雨水,海水,水位,水面,流体,水域 v.[T] 1. 浇水,供以水,注入水,使湿,加水稀释,给...水喝 v.[I] 1. 流泪 2. 流口水 micro hardness 微观硬度 durometer hardness 【化】 肖氏硬度 Vickers hardness 维氏硬度 red hardness 热硬性,红硬性 work hardness 加工硬度 permanent pr...
网络释义 1. 水的永久硬度 为永久硬度,permanent... ... ) permanent hardness of water 永久硬度 ) permanent hardness of water 水的永久硬度 ... www.dictall.com|基于1 个网页© 2024 Microsoft 隐私声明和 Cookie 法律声明 广告 帮助 反馈
沪江词库精选permanent hard water是什么意思、英语单词推荐 永久硬水 相似短语 permanent hard water 永久硬水 hard water 硬水 perched permanent ground water 常静滞地下水 permanent hardness of water 水的永久硬度 hard feed water 硬给水 hard water (resisting) soap 【化】 抗硬水皂 hard water ...
: the part of the total hardness of water that persists after boiling distinguished from temporary hardnessLove words? You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary. Start your ...
Permanent hardness in water can damage piping, boilers as well as other pressurized systems. Hard water tends to form scale deposits that can cause clogging inside the pipe surfaces and other machinery. This type of precipitation is insoluble. ...
permanent hardness Encyclopedia n (Chemistry)chemhardness of water that cannot be removed by boiling as it results mainly from the presence of calcium and magnesium chlorides and sulphates Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994,...
Permanent hardness in water is hardness due to the presence of the chlorides, nitrates and sulphates of calcium and magnesium, which will not be precipitated by boiling. The lime scale can build up on the inside of the pipe restricting the flow of water or causing a blockage. This can happ...
B.B r ur, R.E e , T.Făr uş , L.L zăr, L.Llgariu and Gh.Gutt, Use of strong acid resin purolite C100E for removing permanent hardness of water -factors affecting cationic exchange capacity, chemistry& chemical engineering, Biotechnology, food industry, Food Industry, Vol 13, ...
To solve the question regarding the removal of permanent hardness in water, we can follow these steps:1. Understanding Permanent Hardness: - Permanent hardness in water is primarily caused by the presence of dissolved calci
3) permanent hard water 永久硬水4) permanent hardness of water 永久硬度5) permanent hardness 为永久硬度6) permanent hardness 永久硬度<冶>补充资料:为永久硬度 分子式:CAS号:性质:又称为永久硬度。由硫酸钙、氯化钙等微溶于水,加热水时不产生沉淀的无机化合物构成的水硬度。 说明:补充资料仅用于...