hub

n.

轮轴；中心，焦点；（电器面板上的）电线插孔；[计]集线器

复数：hubs

wheel hub轮毂

rotor hub[航空]旋翼毂

brake hub刹车轮毂；制动轮毂

hub bearing轮毂轴承

usb hubUSB集线器；通用串行总线集线器

1. Chicago is a hub of airline traffic.
   芝加哥是航运中心。
2. The playground is the hub of parental supervision.
   游乐场是家长监督的中心。
3. That restaurant has served as a hub of the community for decades.
   几十年来，这个饭店一直是社区居民交流的中心。
4. Hong Kong is the regional hub for thousands of international companies.
   香港是国际公司在亚太区的营商中心。
5. Two new spokes and a hub must be made.
   我必须重新做两根轮辐和一个轮毂。
6. One technician proposes installing a hub.
   一个技术人员计划安装一个毂。
7. Spokes radiate from a wheel hub.
   轮条从轮轴向四周伸出

UniProt: a hub for protein information.
Src kinases: a hub for NMDA receptor regulation.
Interenterprise electronic mail hub
UniProt Knowledgebase: a hub of integrated protein data
HSP90 at the hub of protein homeostasis: emerging mechanistic insights.
Ascorbate and glutathione: the heart of the redox hub
Ascorbate and glutathione: the heart of the redox hub.
Integer programming formulations of discrete hub location problems
The SDF-1–CXCR4 signaling pathway: a molecular hub modulating neo-angiogenesis
On “a quadratic integer program for the location of interacting hub facilities”