Another major differentiator is the emergence of the Enterprise Service Bus (ESB) as an essential component of SOA.
另一个主要不同点在于作为SOA主要组件的企业服务总线(esb)的出现。
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B737 Classics: Each generator supplies its own bus in normal operation and can also supply essential loads of the opposite side bus system when one generator is inoperative.
B737-NG: Each generator supplies its own bus in normal operation and can also supply essential loads and non-essential loads of the opposite side bus system when one generator is inoperative.