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Traditional methods of applying dedicated algorithms and heuristics result in hard to maintain, unwieldy systems with performance degradation over time.

应用传统的算法和启发式方法很难维护，因为随着时间的推移，系统的性能下降使系统变得难以控制。

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It's not hard to write tests that cover simple methods like setters and getters.

编写覆盖像setter和getter这样简单方法的测试代码并不难。

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British police, with their milder approach and heavier form-filling burden, will find these methods hard to copy.

ECONOMIST: Crime

Since October, a team of Federal Agencies and Departments, led by DOE, has been working hard to refine methods for measuring energy performance and ways to communicate this information effectively to consumers.

WHITEHOUSE: Rating Home Energy Performance

Others point to the alienation caused by the hard-line policing methods espoused by Mr Sarkozy.

ECONOMIST: A wounded nation resorts to extreme measures | The