If the project starts to slip, they will continue to add resources until unable to do so.
如果项目开始滑落，那么他们将不断地增加资源，直到不能这样做为止。
2
Therefore, if the project starts to slip, they will continue to add resources until unable to do so.
因此，如果项目开始滑落，那么他们将不断地增加资源，直到不能这样做为止。
3
Can be added to resolve, add to the belt does not slip until, but can not add too much, so as not to make the belt to bear unnecessary excessive tension and reduce the life of the belt.