Selecting correct cooperative partners has become a key problem to face building supply chain.

合理地选择合作伙伴是构建供应链所面临的重要问题。

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As the strength member aramid fiber has been widely used owing to its well known properties, and enhancing its efficiency has become a key problem.

芳纶纤维作为增强元件由于其众所周知的特性越来越受到广泛的使用，如何提高其强度利用率成为研究关键。

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This makes the power density of electronic components increase sharply, and whether it can be effectively cooled has become a key problem to be solved.

这促使电子元器件的功率密度急剧升高，能否进行有效地散热已经成为亟待解决的关键问题。

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Office rentals have become more competitive in recent months, but Hong Kong's still-high housing costs are a key problem to attracting the young talent who frequently launch speculative start-ups.

CNN: HEADING FOR A PORT IN A STORM