虚工作 meaning in English

dummy activity

According to the logical relationship between processes , and by means of determining the common arrowhead nodes between processes , the conditions under which void processes and new initial nodes are added , are expounded ; and a new drawing method with strong regularity , easy mastery and convenience for later check and arrangement , is proposed
根据工作之间的逻辑关系，通过确定工作之间的共同完成节点，论述了增加虚工作和新增开始节点的条件，提出了一种新的绘图方法，该方法具有规律性强、易于掌握和便于后期的检查和整理等优点。