层次和阶段；层次和等级level and stage

• 塘沽检察院着力构建科学的队伍层级结构，激发队伍活力。

  The Tanggu Procuratorate is making great efforts to construct a scientific team grading structure to stimulate the team's vitality.

• 跨国公司已经在挑战内部的官僚主义，减少层级，贴近市场和客户。

  Multinational companies are challenging internal bureaucracy, reducing the number of levels they have, and getting closer to the market and the clients.