First of all, note the reported outcome of the Polaris project and PERT.
首先，注意观察Polaris项目和PERT图的产出报告。
youdao
The concept was originally applied to the Polaris submarine project.
这个概念首先应用在北极星潜艇项目上。
应用推荐
模块上移
模块下移
不移动