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- Radon in Dingxiang spring 定襄泉水氡
- Main consist in decorates radon in used cement, arenaceous stone. 氡主要存在于装修用的水泥、砂石中。
- Scientists in China,Russia,and the United States measure radon in ground water. 中国;俄国和美国的科学家们测量地下水中的氡.
- Most elms in Dingxiang county of Shanxi province have been damagend by Pyrrhalta aenescens,whose year cycle,life habit,and control methods are introduced briefly in this paper. 山西省定襄县的榆树大多受榆兰金花虫危害 ,该文简要介绍了榆兰金花虫在定襄的年生活史、生活习性及防治办法
- Soil natural thermoluminescence surveying is an accumulation method of measuring radon and it can measure radon in a long time. 摘要土壤天然热释光测量方法是一种累积型测氡方法。
- As for updating the periodic table, element 118 would slot in just below radon in the column that contains inert gases. 至于元素周期表的升级，118号元素的位置就在氡列那些气体元素之后。
- Scientists also hope to predicte earthquakes by measuring radon in ground water. 科学家们还希望通过测量地下水的氡含量来预测地震。
- This text has been described detailedly on the questions of source and danger of the radon in the indoor environment. 主要对室内环境中氡的来源、危害做出详细的介绍。
- I am interested in the ten-week trip next spring. 我对明年春天为期10周的旅行感兴趣。
- And the result is given in field.It can be used to measure radon in air, water and soil and thorium emanation (220Rn). 可用于室内测氡、壤中测氡、水溶液测氡以及钍射气测量等领域。
- Spring in East China usually sets in about March. 华东的春天一般约在三月开始。
- Arrive in summer exactly after spring. 春季以后就是夏季来临。
- The measurement results of indoor radon in the populous place of Chengdu were analysed. 分析了成都市某人口密集区室内氡水平的调查结果及其影响因素。
- We plant trees and flowers in spring. 我们在春天种花种树。
- It's a pleasure to hear birds' warble in spring. 在春天里听鸟儿歌唱是一种乐趣。
- The trees put forth buds and leaves in spring. 春天树木抽芽生叶。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- There is a vein of melancholy in his character. 他的性格中有少许忧郁的气质。
