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1)  sudden pollution
突发污染
1.
The environmental risk assessment(ERA)for a sudden pollution by accident is concluded to the risk characterization based on the comparison of the risk threshold to the pollutant concentration that is analyzed and calculated by utilizing mathematical modeling in the water and atmosphere environment.
环境突发污染事故的风险评价,以数学模型分析污染物在大气和水环境中浓度分布,与损害阈值比较完成风险表征。
2.
Based on the risk analysis of sudden pollution accidents of Heihe\'s supply water and the need for proof system, we should distribute the resources rationally and conduct a systematic study of the establishment of sudden pollution\' s emergency system which is fit for the actual situation of Heihe\'s supply water.
通过对黑河供水水源地周边环境的实地勘察及对相关部门、技术人员及专家等进行访谈,收集大量的现实情况资料作为本文研究背景,在黑河供水水源突发污染事故风险分析、系统建立必要性论证的基础上,合理配置资源,对全面参与、全程管理、协调性强的,适合黑河供水水源实际状况的突发污染应急体系的建立进行了系统的研究。
2)  accidental pollution
突发性污染
1.
Some measures was put forward to reduce the adverse effect to environment and ecology ecosystem,especially to prevent and reduce accidental pollution to maintain clean production.
如何减少对周边环境与生态的影响 ,特别是如何防止和降低可能的突发性污染 ,制定了相应的处理措
3)  sudden pollution
突发性污染
1.
Because sudden pollution of domestic water sources was at high risk,a study on emergent treatment process of sudden cyanide pollution raw water was performed based on the conventional water purification processes.
为应对水源水受到突发性污染,以常规净水工艺为基础,以氰化物为目标污染物,开展了应急处理工艺研究。
4)  pollution incident
突发污染事件
1.
This paper introduces the concept and characteristics of water pollution incident in drinking water source area and its meaning for safe drinking water supply and city security.
阐述了水源地突发污染事件的概念、特点及其对于供水安全和城市经济社会系统安全运行的重要意义。
2.
The emergent response processes in four steps of before,happening of,during and after pollution incident in drinking water source were analyzed.
分析了饮用水源突发污染事件的"事先、事发、事中、事后"4个阶段的应急反应过程,初步探讨了饮用水源突发污染事件的应急预案编制方法及应急机制设置方式,提出了"应急中心—附属组织"式的应急机制,可供我国建立和完善饮用水源突发污染事件应急管理体系时参考。
5)  sudden water pollution
突发性水污染
1.
Emergency management system of sudden water pollution accidents
突发性水污染事故应急管理体系研究
2.
In recent years,with the ever-increasing of sudden pollution accidents occurred in water source areas in China,many problems need to be solved urgently,such as how to protect the security of ecological environment in water source areas and the security of municipal water supply system,and how to rapidly and effectively deal with sudden water pollution accidents.
近年来,我国城市水源地突发性污染事件日益增加,如何保护水源地生态环境安全和城市供水系统安全,以及如何快速、有效地处理突发性水污染事故已成为亟需解决的问题。
3.
The concept and type and characteristic and harm of sudden water pollution accidents are presented.
在介绍突发性水污染事故的概念、类型、特点和危害以及突发性水污染事故预警应急系统的结构和功能的基础上,结合闽江特点,对闽江流域突发性水污染事故预警应急系统的基本构架进行初步探索。
6)  the sudden pollution accident
突发性污染事件
1.
Numerical model for the sudden pollution accident in the lower of the Yellow River;
黄河下游突发性污染事件数值模拟
2.
At the same,the sudden pollution accident can be i.
该求解方法具有守恒性好、算法简单、通用性强,在预测一般洪水及溃坝洪水波演进方面有较好的实用性,并能对黄河下游突发性污染事件进行初步模拟。
补充资料:纠突发错误码
      在应用纠错码时如果错误型e=(e0,e1,...,)内的相继b位分量ei,,...,中,ei和为非零,其他为任意值,则称此错误型是一个长为b的突发错误型。用来纠正这类突发错误型的纠错码,称为纠突发错误码。码所能纠正的突发长度b,称为码的纠突发错误能力。无论是卷积码还是分组码,纠突发错误码的参数必须满足:(g/b)≥(1+R)/(1-R)。这里R为码率;g为相邻二个突发错误之间无误区间的长度,称为保障区间,对分组码,g等于n-b。若上述不等式中的等式成立,则称这个码为最佳码,对分组码来说,最佳码的b等于(n-k)/2。构造纠突发错误码的主要方法是应用时间扩散技术,即把产生在数据序列中的突发错误扩散,使它在各个码字中所表现出来的错误型变成随机错误,然后应用纠随机错误的方法进行纠错。使用较广的纠突发错误分组码有利用几个码组合而成的乘积码、级连码和交错码等。法尔码是一类专门为纠突发错误而设计的码,但它的理论纠突发能力并不高。此外,某些纠随机错误循环码本身就具有一定的纠突发错误能力,如最小距离为d的二进制BCH码,绝大多数至少能纠正长为 d-2的突发错误。纠突发错误卷积码可分为BI型和BⅡ型码。BI型码以码元为单位衡量码的纠错能力,而BⅡ型码则以码段(子码)为单位。主要的纠突?⒋砦缶砘胧抢檬奔淅┥⒓际豕乖斓睦┥⒕砘搿⒀掖孤搿⒏抢穸搿⒔淮砺氲取K芯劳环⒋砦舐氲谋嗦搿⒁肼氲缏范己芗虻ィ苡糜布蚣扑慊?软件实现。
  

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