the third echelon

基本解释

Cultivate the designer team, especially the third echelon of the designer;
大力培养设计师队伍，特别是第三梯队的设计师；
The third part introduces the cost, control strategy and system structure of multi-echelon inventory which faces to supply chain management.
第三章介绍了面向供应链的多级库存管理，分析了多级库存成本结构，以及多级库存的策略和结构；
At present, the domestic heavy duty motor vehicle production enterprises have formed a competition form between the first echelon and the second echelon and the third echelon.
目前，国内重型汽车生产企业已经形成第一梯队、第二梯和第三梯队的竞争格局。