There are three basic classes of the component: activity class, project class and arrow network tools class.

该组件有三个基本类：工序类、工程类及网络计划工具类。

youdao

In the activity-on-arrow network, there are essential differences between positive activity and dummy activity.

双代号网络图中，虚工作和实工作有着本质的区别，其主要作用是传递工作之间的逻辑关系。

youdao

In this paper, based on object-oriented technique, an applied arrow network model is studied and a component of arrow network tools is developed.

作者结合面向对象的设计思想，提出了一种实用的网络计划模型，并实现了实用网络计划工具类组件。

youdao

This may not be a huge demo rating for the network, but "Arrow" marks The CW's most-watched series debut in total viewers since "The Vampire Diaries" in 2009.

CNN: 'Nashville' ratings smother 'Chicago Fire'

Whether or not this idea materialises, a regional anti-missile network of sorts is likely to emerge, as Arrow's sensors will probably be made capable of swapping data with nearby American ships, bases and spacecraft.

ECONOMIST: Rockets overhead