查询词典 radon

Based on that Radon can be integral along the line, moreover, IF of LFM and CW is a line on time-frequency plan, Radon transform and B-distribution are conjoined together.

Radon变换具有沿直线积分的特性，针对LFM信号和CW脉冲信号在时频平面上的瞬时频率是一条直线这一特点，将Radon变换与B分布结合在一起。

A radon proof hydrous paint could well avoid the perniciousness of radon. The results of experiment and ...

本文分析了试验结果，探讨了防氡涂料的机理。

Radon in the environment ; hazard ; radiation ; source of radon ; control measure

环境氡；危害；辐射；氡的来源；控制措施

Issues like what kind of subsequent electric circuit should be adopted to produce effectively the spectrum measure data and the gross measure data, and how to conduct the measure of the radon chamber temperature and humidity in a convenient and accurate way, are one of the important aspects of investigation of radon chamber dada acquisition systems.

在氡室中，通过金硅面垒半体探测器对α粒子的测量，采用怎样的后续电路结构才能有效的获取谱测量数据与总量测量数据，以及对氡室环境的温、湿度如何能简捷、准确测量是氡室数据采集系统的重要研究课题之一。

The SD-3A Auto-radon detector is a kind of digital,sensible and stable instrument which can automaticaly measure gas radon under various conditions.

SD-3A自动测氡仪是"九五"中国地震局监测司指导下研制的数字化、高灵敏度、性能稳定的、适用多种环境下的连续自动观测气氡的仪器。

Chen rui1,zhou shu-min2(east china institute of technology, 344000 fuzhou, china)abstract: radon chamber is a standard equipment which demarcates radon measure instrument. this paper introduces a high- speed data acquisition card called pci- 8408 based on pci bus, and data collection is controlled automatically by device driver using mcgs.

氡室作为刻度测氡仪器的一种标准装置有着重要的应用，本文利用pci-8408光隔离开关量输入输出接口卡作为数据采集接口，根据采集数据对氡室气路进行控制，并通过mcgs组态软件以设备驱动程序的方式控制继电器的状态，实现氡的自动补给和排放以及氡室内温湿度的智能控制。

Thirdly, we study the α-invariant Radon measures for random walks and Levy processes and give some nice ratio limit theorems that is relative to the α-invariant Radon measures.

同时我们研究了随机游动和Levy过程的α-过分函数和α-过分测度，并给出过程沿着矩母函数的次微分方向趋于α-不变Radon测度的一些比例极限定理。

This paper briefly reviews the research history of the lung cancer due to Radon and its progenies in the past hundreds years,then presents the relationship between risk of lung cancer and radon and its progenies inbreathed by uranium miners.

简要回顾氡致肺癌的长时间认识过程和研究历史，简述了当年铀矿工人和矿工吸入氡及其子体与肺癌发病率的关系，指出环境中氡的危害。

The element we're interested in is Radon-222 (there is another form, Radon-218, but the half-life of this isotope is only a few hundredths of a second, so it is less of a problem).

元素我们感兴趣的是氡- 222 （还有另一种形式，氡- 218 ，但半衰期同位素这是只有少数几个百分之一秒，所以它不是一个问题）。

Due to the hazards of radon and its progenies to public health and the important uses of radon measurements in earthquake forecast etc, the measurement accuracy causes more and more attention.

由于氡及其子体对人体健康的影响和氡测量在地震预报等各个方面的重要作用，测氡的准确性越来越引起重视。

The circulation, consumption and reproduction of the trilogy have not only testified to its historical significance and literariness, but also invested it with new meanings.

该三部曲的流通、消费与再生产不仅验证了其历史意义及文学性，而切还赋予它以新的意义。

If he thought that he could buy me off, he would be wrong.

如果他认为他可以收买我，那他就大错特错了。