这一现象即称之为放射性尘降。
任何一次核爆炸都会产生放射性尘降物。
时间——放射性尘降物的辐射强度衰减很快。
Time - fallout radiation loses its intensity fairly rapidly.
核辐射尘降物的衰减率不应核装置的大小而改变。
Decay rates of the radioactive fallout are the same for any size nuclear device.
防尘降物掩体不需要特别建造以保护你免于受尘降物的危害。
Fallout shelters do not need to be specially constructed for protecting against fallout.
以及10%的剩余核辐射。剩余核辐射带来放射性尘降危害。
尘降物需要很长的时间才会衰减，这是核辐射残留的主要来源。
This fallout material decays over a long period of time, and is the main source of residual nuclear radiation.
如果条件存在，核爆产生的放射性尘降物会随风漂移数百英里。
Fallout from a nuclear explosion may be carried by wind currents for hundreds of miles if the right conditions exist.
然而，尘降物的数量会因核装置的大小以及爆炸时与地面的距离而不同。
However, the amount of fallout will vary based on the size of the device and its proximity to the ground.
向官方询问，找出在你居住的社区附近是否有符合防核辐射尘降物的公共设施。
Find out from officials if any public buildings in your community have been designated as fallout shelters.
监测设施能够投射出放射性尘降物的到达时间，然后通过官方的警示渠道发布。
Monitoring can project the fallout arrival times, which will be announced through official warning channels.
风速和风向会影响放射性尘粒到达的时间；冰雹则能带出空气中的放射性尘降物。
Wind speed and direction will affect arrival time of fallout; precipitation may wash fallout from the atmosphere.
裂变的产物通常将散布在地球表面一片巨大的区域上，除非因为下雨产生局部核尘降。
The fission products are generally dispersed over a large area of the globe unless there is local rainfall resulting in localized fallout.
和空中爆炸相比，受局部核尘降影响的顺风区域要比冲击波和热辐射的影响区域大的多。
In contrast with air bursts, local fallout can be a hazard over a much larger downwind area than that which is affected by blast and thermal radiation.
大气粉尘降落是地球表层地—气系统物质交换的一种形式，降尘过程有重要的环境指征意义。
Aeolian dust deposition is one of the main processes for the exchange between atmosphere and earth-surface, which indicates important environmental information.
受尘降物污染最为严重的地区在爆炸点或者爆炸时的下风方向，80%的尘降物会在爆炸后的24小时内产生。
The heaviest fallout would be limited to the area at or downwind from the explosion, and 80 percent of the fallout would occur during the first 24 hours.
通过对不同处理方式处理后的水果中重金属的分析表明，土壤吸收和大气尘降是农作物中重金属的主要来源。
According to the heavy metal contents in the fruits, soil absorption and atmospheric dust become the main sources of heavy metal pollution in crops.
之后采用近地面尘降模型，计算了这类污染源在不同气象层结下的扩散状况，得出其污染浓度对大气环保浓度的分担率。
Then, the concentration under different wind diffusion condition are analysized by using ground pollution mode so that the ratio of contribution to the total pollution limit is obtained.
相比小型武器，早期核辐射的危害是很严重的。但是放射性尘降的危害可被忽略，因为空中爆炸基本上不会给地面带来尘降。
Initial nuclear radiation will be a significant hazard with smaller weapons, but the fallout hazard can be ignored as there is essentially no local fallout from an air burst.
在核爆炸的发生时，找掩体躲避是必要的选择。掩体可以分两种——防核爆的掩体和防放射性尘降物掩体。如下即为对这两种掩体进行说明
Taking shelter during a nuclear blast is absolutely necessary. There are two kinds of shelters - blast and fallout. The following describes the two kinds of shelters
记住，任何的保护措施，不管是否是临时性的，总要比没有任何的防护要好，遮挡放射性尘降物的东西越多，离放射性尘降物的距离越远，越善用时间，保护的效果就会越好。
Remember that any protection, however temporary, is better than none at all, and the more shielding, distance, and time you can take advantage of, the better.
英国已经发现从日本受损的福岛核电站释放出来的放射性降尘。
RADIOACTIVE fallout from the stricken Fukushima nuclear plant in Japan has been found in the UK.
通过对鸡西市1996～2000年环境空气监测结果的分析，其空气中的TSP和降尘污染较重，环境空气污染呈现典型的煤烟型污染。
We analysed environmental air monitoring data of JiXi city from 1996 to 2000 and found TSP and dust pollution were serious, air pollution in JiXi is typical smoke pollution.
本文主要介绍洞内施工通风的设计与计算、降尘技术与措施以及所取得的效果。
The design &- calculation of ventilation, dust - alleviation technology &- measures and the achievements during construction of tunnel are recommended in this paper.
选择兰州市典型沙尘和非沙尘天气收集两类降尘，并对其元素组成进行测定。
The dustfall samples collected under typical dust and non-dust weather were analyzed to examine their composition in Lanzhou.
公司产品涉及降尘和灭火系统、流量和压力监测(机械式和电子)、减压和泄压阀、过滤系统。
These products include Dust and Fire suppression systems, Flow and pressure monitoring both Machanical and Electronic, pressure reducing and relief valves, Filtration systems.
选择兰州市典型沙尘天气和非沙尘天气收集两类降尘，并对其进行粒度测定。
The dustfall samples collected under typical dust and non-dust weather were made particle size analysis in Lanzhou.
针对煤炭装卸环境中的煤粉尘污染状况，运用喷雾降尘方法，使煤炭装卸环境得以根本的改善。
In view of coal dust polluting condition of coal handling environment, this paper utilizes the spraying and dust settling method to improve the coal handling environment thoroughly.
大气降尘中所含的镉和铅都对环境和人体健康造成危害。
Cadmium and Lead in dustfall is harmful to environment and human health.
大气降尘中所含的镉和铅都对环境和人体健康造成危害。
Cadmium and Lead in dustfall is harmful to environment and human health.
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