The radioactivity variation of the shallow part of Yellow River delta with the natural gamma ray spectrum logging from 16 Wells is studied.
通过16口浅层自然伽马能谱测井资料分析黄河三角洲浅层放射性的区域变化状况。
The survey of natural radionuclide contents in soil in China(1983—1990)is a part of investigation of environmental natural radioactivity level on China.
中国土壤中天然放射性核素含量调查（1983—1990年）是中国环境天然放射性水平调查研究的一部分。
The results show that the radioactivity level of varied water bod-ies of the city was within normal natural background.
调查结果表明，上海市各类水体中天然放射性核素浓度属正常本底水平。
What natural gamma well logging measured is total natural gamma radioactivity in layer, and it is a kind of most basic method in casing pipe well logging.
自然伽马测井测量的是地层总的自然伽马放射性，是套管井测井的一种最基本的方法。
The methods of urban environment's natural radioactivity were investigated through abundances of experiments and field measurements.
通过大量的实验和野外测量，对城市环境天然放射性评价方法进行了研究。
The results show that there is a normal level of natural radioactivity of soil in the Xiazhuang granite uranium ore field.
评价结果表明，下庄铀矿田的土壤中天然放射性水平处于正常范围。
Based on the natural radioactivity of potassium, the contents of potassium in solid potash fertilizer products were determined by radioactivity method.
基于钾的天然放射性，用放射性方法测定固体钾肥产品中的钾含量。
Natural radioactivity in the marble is equal to the environmental level, radioactivity in the granite is much higher than that in marble.
大理石的天然放射性属于环境本底水平，花岗岩中放射性远远高于大理石产品。
This paper reports the investigation results of natural radioactivity level in river, lake. spring, well and tap water in Jiangsu Province.
本文报道了江苏省江河、湖泊、泉、井、近海海域和自来水中天然放射性核素浓度的调查结果。
The result shows that if the cooling system of the spent fuel storage pool can be retrieved in 19 hours, the natural circulation cooling ability is sufficient to prevent radioactivity release.
计算结果表明。恰希玛核电厂乏燃料池冷却系统失效后，只要在19 个小时内修复冷却系统， 不会出现大量放射性物质外泄。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well and tap water in Qirighai Province.
本文报道了青海省江河、湖泊、水库、泉、井和自来水中天然放射性核素浓度的调查结果。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well and tap water in Beijing City.
本文报道了北京市河流、湖泊、水库、温泉、井和自来水中天然放射性核素浓度的调查方法及主要结果。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well and tap water in Hubei Province.
本文报道了湖北省江河、湖泊、水库、温泉、农村井水和城市自来水中天然放射性核素浓度的调查结果。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well, offshore water and tap water in Yunnan Province.
本文报道了云南省江河、湖泊、水库、泉(温泉)、井和自来水中天然放射性核素浓度的调查结果。
Information on nation wide survey activities during 1970-1980 years on natural environmental radioactivity level in China and the related tritium data are given.
给出了70～80年代全国性的几次环境放射性水平调查的资料以及有关环境氚的数据。
The practice show that quality and radioactivity of the product, which is made by gangue and some condensing agent, can meet related national regulation after 28 days' natural maintenance.
研究结果表明：用煤矸石和适量固化剂制成的非烧结砖经过28d自然养护后，其质量和放射性均符合国家有关标准。
The results show that the radioactivity level of varied water bodies of the region was within normal natural background.
调查结果表明，宁夏回族自治区水体中天然放射性核素浓度属正常本底水平。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well and tap water in Hebei Province.
本文报道了河北省河流、湖泊、水库、海水、泉水、农村井水以及城镇自来水中天然放射性核素浓度的调查结果。
This paper reports the investigation results of natural radioactivity level in river, lake, reservoir, spring, well and tap water in Hebei Province.
本文报道了河北省河流、湖泊、水库、海水、泉水、农村井水以及城镇自来水中天然放射性核素浓度的调查结果。
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