Roughly stated, you are following the Liskov Substitution Principle if you can use any implementation of an abstraction in any place that accepts that abstraction.

粗略地说，如果你可以在任何接受抽象的地方使用那个抽象的任何实现，就是在遵循Liskov替换原则。

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In principle, genetic engineering is simple, but inserting a new gene into the right place in an organism's genome is fraught with difficulty.

原则上，基因工程学很简单，但要在生物基因序列恰当的地方植入新基因却颇为困难。

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With regard to customers, getting the right product, in the right condition, to the right place, at the right time, at the right price seems to be a well entrenched principle of SCM professionals.

对于客户而言，在合适的条件下，在合适的地点和时间，以合适的价格提供合适的产品似乎是供应链专业人士的不二法则。

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And hedge funds are not in principle the place for bullish bets on Asian growth.

ECONOMIST: Hedge funds in Asia

Like the government, we think that the hereditary principle has no place in a democracy.

ECONOMIST: Labour��s Lords reform does not go far enough

The hereditary principle has no place in a self-respecting Parliament.

ECONOMIST: Bagehot