This paper expounds the main production technology and dangerous and harmful facts of a potassium hyperchlorate manufacturer , adopts relevant safety assessment methods to conduct the quantity & quality analysis , and proposes relevant safety countermeasures to avoid a explosion situation 摘要文章阐述了某高氯酸钾生产企业采用的生产工艺及存在主要危险的诸有害因素，并采取适当的安全评价方法进行了定性和定量分析，针对性地提出了相应的安全对策措施。
There were significant differencesin incidences of high blood pressure , hearing lose and abnormal index in cardiovascular system among those operators at different post in ship engine room . [ conclusion ] there was positive correlation between occupational hazards in ship engine room and the degree of health harm of operational staff 结论不同等级的轮船机舱操作的职业有害因素危险与作业人员的血压升高幅度、听力损伤程度、听力异常及多种疾患并存的发生均有程度不同的正相关。
Various of the dangerous and harmful factors are analysed according to the safety production evaluation specification from the state safety production general bureau and the regulation of the oil extraction plant , and the factors are professionally evaluated by the reference from american evaluation regulation , the precaution is taken by the way of safety management for smoothly processing during engineering 摘要按照国家生产安全监督总局安全生产项目评价方法和油脂浸出厂的行业规范，找出油脂浸出厂工程项目中存在的各种危险和有害因素，对这些因素参照美国评价因子进行专业评价，对完善项目安全管理提出措施，保证工程安全顺利施工。
Firstly , the three main harmful factors " characters and rules , theirs effect on civil house , demolishment criterion and control measure will be researched systemically . secondly , fuzzy mathematics , system arrangement analytical method and expert consultation method are put forward and discussed specially to set up civil house security fuzzy multi - arrangement elevation model , to evaluate blasting harmful factors " effect to neighborhood civil house ' s safety in the construction of express way , to predict the security of civil house and to bring forward control measures . lately , the forecast of the civil houses " safety by using bp neural net model and optimize of the blasting parameters will also be discussed in the dissertation 本文的主要研究工作有：系统地研究了爆破地震、爆破飞石、爆破空气冲击波三大有害因素的特征及规律、对民房的影响、破坏判据和控制措施；提出并重点论述采用模糊数学和系统层次分析法及专家咨询法建立民房安全性模糊多层次评价模型，对高速公路建设中爆破有害因素对邻近民房安全进行评价，预测民房安全性，提出控制措施；利用bp神经网络模型对民房安全进行预测，并对爆破参数进行优化。
