她戴著一顶雅致的小帽子。
She is wearing a pert little hat.
她头戴一顶小巧别致的帽子。
她是一个冒失的孩子。
Now a prig is a pert fellow who gives himself AIRS of superior wisdom.
这种人鲁莽无礼，总是摆出一幅有极高智商的神态。
She wore a pert little hat with a veil, and her mother's diamonds at her throat and wrist.
她头上的小帽子镶有面纱，脖子和手上都挂着她母亲的钻石。
It also gives a construction approach for approximating the probability density function of activity duration, which will facilitate the computer simulation of the PERT diagram.
本文还给出了一种简练的函数构造法，用该方法构造的函数能较好地逼近活动工期概率密度函数，方便了对计划网络图的计算机仿真运算。
Network planning software based on PERT technology is a new kind of project management software developed for compiling schedules for projects.
PERT技术的网络计划软件是基于编制工程进度计划要求而开发的一种新兴的工程管理技术软件。
We can use PERT to evaluate the probability that the whole project will finish in a certain times.
PERT可以估计整个项目在某个时间内完成的概率。
The assumption that the duration of a project and the whole project's finishing time is random and submitted to some kinds of probability distribution is the theoretical basis of the PERT.
PERT的理论基础是假设项目持续时间以及整个项目的完成时间是随机的，且服从某种概率分布。
In the PERT network, a project is composed of many tasks.
在网络计划问题中，一项大的工程由许多工序合成。
The network planning technique is a kind of method formulating plans and project management execution. Critical path method (CPM) and Program Evaluation and Review Technique (PERT) are commonly used.
网络计划技术是一种制定计划和对项目进行管理的方法，最常用的即是关键线路法CPM和计划评审技术PERT。
The network planning technique is a kind of method formulating plans and project management execution. Critical path method (CPM) and Program Evaluation and Review Technique (PERT) are commonly used.
网络计划技术是一种制定计划和对项目进行管理的方法，最常用的即是关键线路法CPM和计划评审技术PERT。
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