The results show that the deformation stability theory provides practical and effective theory and method for the global stability assessment and unstable failure analysis of cavern group.

研究表明，变形稳定理论为库群整体稳定性评价和失稳破坏分析提供了一套实用而有效的理论和方法。

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The ineffective work of employment guidance and career counseling in universities is caused by the lack of an effective theory and specific ideas for career guidance.

大学的就业指导和职业辅导工作开展不力的一个重要原因，就是缺乏有效的理论指导和明确的工作思路。

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Based on equilibrium equations and stress strain relationships, an effective theory and computational method for the analysis of RC beams strengthened with FRP plates are presented.

该文基于钢筋混凝土结构设计理论中的截面平衡方程和应力应变关系，为FRP板加固的钢筋混凝土梁的计算提供了行之有效的理论和方法。

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He says the study shows that, in theory,white roofs could be effective in reducing urban heat.

VOA: special.2010.03.02

This supports the theory that iPhone is particularly effective at undermining traditional text-messaging.

FORBES: Text-messaging Volume of iPhone Owners Declining Sharply in Finland

Situational leadership theory holds that leaders are most effective if they adopt different leadership styles depending on the task and the people they are leading.

FORBES: Can 'Feminine' Women Make It To The Top?

The theory sounds great: Insurers that provide the most cost-effective care can lower premiums and attract more buyers.

FORBES: Medicare Vouchers Won't Reduce Health Spending