查询词典 sulfate

In this study, sulfate radical concentration from 4 drip water points (PL1, PL2, SH, JG) in the Shihua cave have been monitored for three years, and those from the drip water point was monitored for two years. Drip discharges show three types of response to surface precipitation variations: rapid response, response with associated time-lag and stable. The results show that:(1) SO(superscript 2- subscript 4) concentration in rapid response drip water increases sharply during rain period and has a exponential relationship with drip rate;(2) in the drip water of lag response, SO(superscript 2- subscript 4) concentration has no significant incrcase during rainfall, but they show a increasing trend during a long-term monitoring;(3) SO(superscript 2- subscript 4) concentration at the stable drip site is low and has no obvious change during wet weason.

本文通过对石花洞洞穴4个滴水点（JG， SH， PL1和PL2）硫酸根浓度近3个水文年的分析测定，结果表明：响应降雨快的滴水点滴水SO(上标 2-下标 4)浓度升高幅度最明显，且滴水SO(上标 2-下标 4)浓度与滴率成指数关系；滞后响应降雨的观测点滴水SO(上标 2-下标 4)浓度雨季升高幅度不明显，但在长期观测期间有明显增加的趋势；对降雨没有响应的滴水点，其SO(上标 2-下标 4)浓度低且雨季没有明显变化。

The winter-time PM2.5 pollution was serious with an average concentration of 223μg/m^3. Organic matter, sulfate and elemental carbon were the most abundant species constituting about 23.4%, 13.1% and 12.8% of the total PM2.5 mass, respectively.

结果表明，天津冬季PM2.5污染严重，平均质量浓度为223μg/立方公尺，其中有机物、SO4(上标 2-)和元素碳是含量较高的3种组分，分别占PM2.5总质量的23.4%，13.1%，12.8%。

The experimental study on distributing model of deposit and effects on compensation rate are carried out with the copper sulfate solution as the working substance.

以硫酸铜溶液为介质，建立电化学沉积模型，并对补偿量影响因素进行了研究。

A small amount of ammonium sulfate doping can reduce the agglomeration of the resultant yttria powders.

采用得到的Y2O3纳米粉，不加入任何烧结助剂，经1700℃真空烧结4h得到了透明Y2O3陶瓷。

Objective To study the effects of Cadmium Chloride and Zinc Sulfate on the growth and metastasis of hepatocellular cacinoma in vivo.

目的 研究氯化镉和硫酸锌对肝细胞癌生长和转移的抑制作用。

Reagent-grade cadmium chloride, copper chloride, and zinc sulfate were used to conduct all studies.

试剂级氯化镉，氯化铜，硫酸锌和使用进行的所有研究。

Methods:Sparfloxacin sodium was synthesized in alkaline condition with sparfloxacin, and then sparfloxacin sodium react with zinc sulfate to sparfloxacin zinc;Sparfloxacin zinc ointment was prepared with vaseline and lanolin as drug excipient and the concentration of sparfloxacin zinc was analyzed with ultraviolet-visible spectrophotometer;Burn patients were treated with sparfloxacin zinc ointment and other routine techniques.

用司帕沙星做原料，在碱性条件下反应生成司帕沙星钠，司帕沙星钠再和硫酸锌反应生成司帕沙星锌：以凡士林和羊毛脂为基质制备软膏剂，用分光光度法检测主药的含量，以临床烧伤患者为使用对象，司帕沙星锌软膏剂配合其他常规治疗方法治疗烧伤疾病。

The main work of this thesis is to research the sulphate bath, we find that the sulfate system has the advantage of slight acidic choloride electrolyte system and alkaline zincate system. The solution of sulphate system is very simple and easy to maintain and high current efficiency. Furthermore, the technology has the advantage of lower plating cost and broader width of the temperature.

本论文的主要内容是以文献中报道不多的全硫酸盐体系电镀锌镍合金为研究对象，发现全硫酸盐体系结合了上述两种类型的优点，镀液成分比较简单，容易维护，对材料、设备的腐蚀比较小，阴极的电流效率高，而且该工艺具有成本较低和温度范围宽等优点。

Mainly increasing alkalinity and sludge loading in the reactor for microbial condition where zoogloea grew easily, we added Javel water and ferrous sulfate on side, and sludge bulking was well under control.

试验以增加反应器内的碱度和污泥负荷来提供适应菌胶团生长的微生物环境为主，同时投加次氯酸钠杀菌剂和硫酸亚铁絮凝剂来辅助控制污泥膨胀。

Determination of Phosphate, Chloride and Sulfate in Heteropoly Acid by Zwitterion Eluent

杂多酸是一种理想的催化剂载体［1，2］。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。