By restricting knowledge of the system to a single layer, a boundary is placed on the overall system complexity, promoting substrate independence.

通过将系统知识限制在单个层，可以限制整个系统的复杂性，促进了底层的独立性。

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One thing that's been a trend around the world is that the I mentioned that the U.S. Federal Reserve System was different from other central Banks in that it was designed to have independence.

一个在世界范围内，流行的事实是，我提到过美国联邦储备系统，与其他中央银行不同，因为它有独立自主性。

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We have greatly enhanced our already robust system of checks and balances to maintain analytical independence.

我们极大地加强了我们已经非常强大的检查与均衡体系，这样能是我们保持分析的独立性。

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Universities have complained that the current A-level system does not stretch pupils sufficiently or give them the intellectual independence and curiosity needed for degree-level study.

BBC: A-level students facing shake-up

Thousands of disabled people could lose some benefits because of last-minute changes to the new system of Personal Independence Payments, campaigners say.

BBC: Walking stick