Backflow, separation and vortices result from hub leakage lead to a complex flow structure near hub in the stator passage.
由泄漏流引起的回流、分离和旋涡等使静子中靠近轮毂处流场十分复杂。
Requires complex knowledge of market structure and order flow.
需要市场结构和秩序的流动等复杂的知识。
The organizational structure should not be so simple that it cannot adequately monitor the enterprise's activities nor so complex that it inhibits the necessary flow of information.
组织机构不应该简单到不足以控制企业的活动，也不能复杂到让组织内充斥着信息流。
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