Principle 2: Challenge your use case goals

原则 2: 挑战你的用例目标

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Principle 2: Encourage individual responsibility for product quality.

原则2：鼓励个体对产品质量负责。

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Principle 2: Understand the quality and coverage of the test material in the regression test suite.

原则2：了解回归测试套件中现有测试材料的质量和覆盖。

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So, for example, we can move to the next periods in the periodic table. When we talk about a period, we're just talking about that principle quantum number, so period 2 means that we're talking about starting with the 2 s orbitals, period 3 starts with, what we're now filling into the 3 s orbitals here.

我们可以移至周期表的下一个周期,当我们讨论一个周期时，我们仅仅讨论,周期3以我们所填充的3s轨道，开始填充所以周期2意味着,我们从2s轨道谈起，周期3以我们所填充的3s轨道开始填充。

麻省理工公开课 - 化学原理课程节选

In doing so, they should keep in mind Wilson's Principle No. 2: For every scientist, there exists a discipline for which his or her level of mathematical competence is enough to achieve excellence.

WSJ: Great Scientists Don't Need Math

"This is Web 2.0's weakest link principle, " Hubbard says.

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Forty-seven per cent of the 2, 000 adults questioned said they opposed the principle of the licence fee being increased to help those who could not afford to upgrade to digital TV.

BBC: NEWS | Entertainment | BBC digital TV fee hike 'opposed'