| 1. | Standard test method for uranium analysis in natural and waste water by x - ray fluorescence
用x射线荧光法分析天然水和废水中铀的标准试验方法 |
| 2. | Study on determination of trace cobalt in natural water by thin layer resin phase spectrophotometry
三元配合物薄层树脂相光度法测定天然水中痕量钴的研究 |
| 3. | Alizarin red s sol - gel cme can be used directly to determine the total aluminum in natural a nd drinking water
能直接使用茜素s修饰电极对天然水和饮用水中铝的含量进行测定。 |
| 4. | In the meantime , with the development of economics and industry , the pollution station of pure water becomes worse by the industrial pollutants
同时，随着经济的迅速发展，工业污染物对天然水的污染也在不断加剧。 |
| 5. | Prior to may 1963 , the price of natural water was roughly 10 cents per 14 gallons however , in the urban areas it was often as high as $ 5 per bucket
在1963年5月之前，天然水的售价约为每担1角，但5月宣布制水后竟加至每担5角，且销量甚佳。 |
| 6. | Scientific hydrating formula : natural scientific hydrating formula , persistently release hydrating factor , improve skin dryness , leave your skin bright and transparent all day long
科学补水配方：天然水科学配方，可持续释放保湿成份，解除皮肤干燥现象，让你一整天都是晶莹剔透的“水美人” 。 |
| 7. | On the principle of material balance , a general formula of the material balance equations of the gas - injecting , natural water flooding and oil - rimming condensate gas reservoirs is setting up in the paper
文章从物质平衡原理出发，建立起了注气开采、有天然水驱、带油环的凝析气藏物质平衡方程通式。 |
| 8. | Opinions are raised on the study of such problems as separation , concentration and analytical techniques of gold in natural water , appraisal and interpretation of hydrogeochemical gold anomalies , and the application of hydrogeochemical gold exploration
对天然水中金的分离富集、分析技术、水化学金异常解释评价途径及水化学找金的应用等问题，提出了进一步研究的意见。 |
| 9. | The complex and the filter are dissolved in a small volume of dmso , and the absorbance of the resulting solution is measured by means of spectrophotometric method at 545nm wavelength against the reagent blank . the detection limits better than 1 . 0 u g / l can be achieved
50倍富集时，方法的检出限为0 85pg l 。以上两种方法应用于分析天然水以及矿泉水中的mo （ vi ）和的o ） ，回收率好，结果满意。 |
| 10. | Based on an analysis of causes and basic characteristics of drought in north and south areas of china , it is pointed out that drought in north areas , such as the yellow river basin and the huaihe river basin , was characterized by the severe systematic demand - supply contradiction resulted from the shortage of water resources , and successive drought disasters intensified by hot and dry weather , and that drought in south areas was characterized by the occurrence or successive occurrence of dry years due to hot and dry weather and the seasonal water shortage induced by their geographic and climatic features and insufficient water supply capacity
摘要以区域干旱特征分析以及干旱灾害应对策略研究为目的，阐述我国南、北方两种不同地域类型的区域干旱成因和基本特征，指出黄淮海区域的干旱特征主要表现在天然水资源短缺引发的系统性深度供需矛盾，以及晴热少雨气候加剧这种矛盾而产生的持续干旱灾害；南方地区的干旱特征主要表现在晴热少雨气候导致枯水年或连续枯水年出现，以及地理气候特征和供水工程容量不足等因素产生的年内季节性干旱缺水。 |
