pure water filter
⑵ 求一篇关于纯净水的英语作文
In view of the current observed the advantages and disadvantages of pure water, the researchers put forward three proposals: First, inorganic mineral content and an appropriate degree of pollution-free natural water sources, should be the best choice for human drinking water. In rural areas, such as the wild areas of good water quality, water in the absence of extraordinary modern organic pollutants or toxic pollution microbiology from the security, availability of water to boil or filter drinking can be treated, there is absolutely no need Expensive long-term drinking water. Second, in the city or water in the modern organic heavily polluted areas, clean drinking water can rece the adverse long-term water quality on the body of harmful, However, in order to avoid long-term side effects of drinking when the community should develop standards for mineral water, indivials should increase the food potassium, sodium, magnesium, zinc, copper, iron and other elements of the intake, dietary fat control, so as not to increase the cardiovascular The damage, and pay attention to the prevention of microbial contamination. Third, growing children, pregnant women, high-intensity physical activity group (such as soldiers, athletes, etc.), obesity, cardiovascular disease patients, not long-term clean drinking water.
⑶ 谁有整套纯化水制备系统专业术语英文版的啊
1.蒸馏法，按蒸馏器皿可分为玻璃、石英蒸馏器，金属材质的有铜、不锈钢和白金蒸馏器等。按蒸馏次数可分为一次、二次和多次蒸馏法。此外，为了去掉一些特出的杂质，还需采取一些特殊的措施。例如预先加入一些高锰酸钾可除去易氧化物；加入少许磷酸可除去三价铁；加入少许不挥发酸可制取无氨水等。蒸馏水可以满足普通分析实验室的用水要求。由于很难排除二氧化碳的溶入。所以水的电阻率是很低的，达不到MΩ级。不能满足许多新技术的需要。%D%A %D%A 2.离子交换法，主要有两种制备方式：%Dª. 复床式，即按阳床—阴床—阳床—阴床—混合床的方式连接并生产去离子水；早期多采用这种方式，便于树脂再生。%D«. 混床式（2-5级串联不等），混床去离子的效果好。但再生不方便。%D%A离子交换法可以获得十几MΩ的去离子水。但有机物无法去掉，TOC和COD值往往比原水还高。这是因为树脂不好，或是树脂的预处理不彻底，树脂中所含的低聚物、单体、添加剂等没有除尽，或树脂不稳定，不断地释放出分解产物。这一切都将以TOC或COD指标的形式表现出来。例如，当自来水的COD值为2mg/L时，经过去离子处理得到的去离子水的COD值常在5-10mg/L之间。当然，在使用好树脂时会得到好结果，否则就无法制备超纯水了。 %D%A %D%A 3.电渗析法，产生于1950年[4]，由于其能耗低，常作为离子交换法的前处理步骤。它在外加直流电场作用下，利用阴阳离子交换膜分别选择性的允许阴阳离子透过，使一部分离子透过离子交换膜迁移到另一部分水中去，从而使一部分水纯化，另一部分水浓缩。这就是电渗析的原理。电渗析是常用的脱盐技术之一。产出水的纯度能满足一写工业用水的需要。例如,用电阻率为1.6KΩ·cm(25°C)的原水可以获得1.03MΩ·cm(25°C)的产出水。换言之，原水的总硬度为77mg/L时产出水的总硬度则为∽10mg/L.%D%A %D%A 4.反渗透法，目前它是一种应用最广的脱盐技术。反渗透膜虽在1977年 就有了，但其规模化生产和广泛用于脱盐却是近几年的事情。反渗透膜能去除无机盐、有机物（分子量>500）、细菌、热源、病毒、悬浊物（粒径>0.1μm）等。产出水的电阻率能较原水的电阻率升高近10倍。
⑷ 怎样用英语介绍自己的专业（我的专业是测控技术与仪器）急 急
Hello. My major is measuring andcontrol technology and instrumentations.
⑸ 专业英语翻译，请高手来~（水利方面）
Sewage treatment:
According to different levels, sewage sludge sewage treatment can be divided into secondary and tertiary treatment,. Primary treatment basically is in a suspension of solid waste, mainly by the interception and settlement, oil physical method. Second is the main task for the treatment of wastewater is greatly removed the colloid and dissolved organic pollutants, use the method of activated sludge, the biological treatment membrane. 3 processing and depth, its purpose is to remove the suspended, inorganic wastewater and other pollutants, the commonly used method is mainly physical and chemical methods, such as the technology adsorption, ion exchange and coagulation precipitate, oxidation, etc.
Urban sewage by grid, a leaking (tank), remove the suspended and gravel, large and aeration biological treatment into second leaking (second pond) spate separation, separated from the sludge sedimentation of back into aeration, another part of the concentration, the digestion and dehydration after the comprehensive utilization of shipped, 2 the leaking water via chlorination pool after disinfection in-depth processing or discharge.
Water treatment:
The basic principle of water -- > add alum, settling -- > > -- -- - and chlorine
First choose suitable water pipes and pipe, use water pump and pump (1) and before the pump to kill alga, chlorination plants and shellfish. Through the level of water pump to plant processing system. After mixing (usually in source water addition of suitable amount of aluminium, commonly known as "), precipitation, filtration, disinfection process, each process with the corresponding structures (such as filters, QingShuiChi leaking, etc), after disinfection is generally chlorination and ammonia, putting the disinfectant QingShuiChi, and by the water in the pool for an hour or so, the water qualified secondary pump water pump (by) pressure to urban network for drinking and proction.
⑹ 纯水的英文有多少种说法，请例出
纯水 [chún shuǐ]
[化学] pure water
aqua pura
专业释义
专业：化学|能源科学技术|医药科学
pure water -引用次数：76
参考来源 - 中空海藻酸钙微胶囊的性质及其固定化枯草杆菌生产纳豆激酶的研究
purified water -引用次数：7
参考来源 - 制药厂纯水系统的设计、建造与验证
neat water -引用次数：1
参考来源 - 二茂铁亚胺环钯化合物和Au（Ⅰ）催化的Suzuki偶联反应研究
purity water
以上统计来源于2,447,534篇论文数据
⑺ 纯水、纯水制备，中水、中水回用的专业英语怎么说，不要各种翻译软件上直接翻译过来的哈
纯水 DIW De-Ionized Water
UPW Ultra Pure Water
纯水制备 preparation of pure water
中水 Reclaimed Water
中水回用water reuse
希望能帮助到你 ，后版两个是我权查的。
⑻ 用英语介绍自己的专业
Good morning, everyone. Thank you for taking your time. It’s really my honor to have this opportunity to take part in this interview. Now, I would like to introce myself briefly.
大家早上好！感谢您在百忙之中抽出时间。非常荣幸有机会参加本次面试。下面我简单介绍一下我自己。
My name is ***. I am 23 years old and born in Qing. I graated from Hebei University of Science and Technology. My major is English. And I got my bachelor degree after my graation. I also studied Audit in Hebei Normal University of Science and Technology. I am very interested in English and study very hard on this subject. I had passed TEM-8 and BEC Vantage. I worked in an American company at the beginning of this year. My spoken English was improved a lot by communicating with Americans frequently ring that period.
我的名字是***。今年23岁, 出生在青岛。我毕业于河北科技大学。我的本科专业是英语并且得到了学士学位。我还在河北师范大学学习审计。我对英语很有兴趣并且很努力地学习。我已经通过了TEM-8, BEC的考试。我曾在一家美国公司工作。在那段时期，我经常与美国人进行交流，因此我的口语进步了很多。
I am very optimistic and easy to get along with. I have many friends. Teamwork spirit is very important in this age. I think if we want to make big achievement, it’s very important to learn how to cooperate with other people. My motto is "characters determine destity", so I alwarys remind myself to be honest and modest to everyone .
我很乐观, 很容易相处。我有很多朋友。团队合作精神在这个时代是非常重要的。我认为, 如果我们想做出重大的成就, 学习如何配合其他的人是非常重要的。我的座右铭是“人格造就命运”, 所以我决定时刻提醒自己，要诚实和谦逊地对待每一个人。
As a motto goes "attitude is everything". If I get this job, I will put all my heart in it and try my best to do it well.
正如一句格言所说:“态度决定一切”。如果我得到这份工作的话, 我将用我全部的心, 而且尽力去把它做好。
⑼ 急求教机械专业英语翻译 产品位纯水设备
安装,调试和执行...