parallel chain of command

例句：

1. 1. The military has a parallel chainof command that ensures effective communication and coordinationamong its units.
   军队拥有一个平行指挥链，确保其各部队之间有效沟通和协调。
2. 2. In the field, the commander's decision is often subject to theapproval of a parallel chain of command.
   在现场，指挥官的决定往往需要得到平行指挥链的批准。
3. 3. The new policy requires all departments to follow the same parallel chain ofcommand for efficiency.
   新政策要求所有部门遵循相同的平行指挥链以提高效率。