pert network造句

• An algorithm of automatically arranging node in drawing pert network chart
  网络图自动布点算法的研究
• After the lag procedure introduced, the precedence network is transferred into generalized pert network, and then the risk of construction schedule could be calculated with the mc method or the modified pert method
  引入时距工序后，将搭接网络转化为广义pert网络，然后用mc方法或用当量概率修正pert方法计算搭接施工网络进度风险。
• In this paper, monte carlo ( mc ) method is used in the research of distributing of construction duration and computation of time parameter of pert network . according to probability viewpoint, critical line and key degree of activity in the network are also defined . aiming at the limitation of application of the mc in large scale the network, the simplified computational method for the network is presented with quantum probability theory and composite method of path in network
  本文用mc(montecarlo)方法研究了施工工期的分布规律和pert(programevaluationandreviewtechnique)网络的时间参数的计算；用概率论的观点定义了pert网络主导线路和关键度；针对大型施工进度网络mc方法应用的局限性，采用线路合成方法，引进当量概率概念，提出了pert网络的简化计算方法；根据工程搭接施工网络的特点，将其转化为广义pert网络，探讨了其施工进度风险的计算。
• The achievements achieved in the study are presented as follows : ( l ) to the distribution of construction duration of the pert network, even though every activity duration obeys normal distribution, it is failed to be proved to be in the obedience with normal distribution strictly . however, if there-are a lot of activities in a path of the pert network, for instance, more than 20 activities, without reference to the normal distributions-distribution or triangle distribution which activities duration obeys, the construction duration approximately obeys the normal distribution when the form of distribution is not partiality seriously
  通过本文的研究取得的新成果有：(1)对pert网络施工工期的分布，即使每一活动持续时间服从正态分布，也不能证明其严格服从正态分布，但当pert网络线路上的活动较多时，如超过20项，不论活动持续时间服从正态分布、分布，还是三角分布，当偏态不十分明显时，则工期近似服从正态分布。
• The achievements achieved in the study are presented as follows : ( l ) to the distribution of construction duration of the pert network, even though every activity duration obeys normal distribution, it is failed to be proved to be in the obedience with normal distribution strictly . however, if there-are a lot of activities in a path of the pert network, for instance, more than 20 activities, without reference to the normal distributions-distribution or triangle distribution which activities duration obeys, the construction duration approximately obeys the normal distribution when the form of distribution is not partiality seriously
  通过本文的研究取得的新成果有：(1)对pert网络施工工期的分布，即使每一活动持续时间服从正态分布，也不能证明其严格服从正态分布，但当pert网络线路上的活动较多时，如超过20项，不论活动持续时间服从正态分布、分布，还是三角分布，当偏态不十分明显时，则工期近似服从正态分布。