You need the architect's skills to assess feasibility and costs of features for the project manager to be able to define the cost/benefit ratio.

你需要架构师的技能去为项目经理评估可行性和成本，并由此确定成本/收益比率。

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Plus, as much as I love solar tech and think that there have been a lot of impressive improvements in it lately, the actual cost-benefit ratio here remains unclear.

再说一句，我认为，我所喜欢的太阳能技术最近已经有了许多令人印象深刻的提高，实际的成本回报率仍然不清楚。

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The other said it wasn’t high enough cost-to-benefit ratio, ” Lotto said.

另一位则说成本收益比不够高，”洛托说。

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Although HS2 seems to have a positive cost-benefit ratio, there are other projects, chiefly in roadbuilding, that would provide a better return.

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Recently a detailed study conducted by the researchers at Columbia University has indicated that the cost-benefit ratio of using da Vinci surgical system to perform hysterectomies is not favorable at all.

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The cost-benefit ratio is commensurately positive.

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