It is feasible economically to purify PPS resin by water-washing. When high quality is required, the resin can be purified by an acid-washing.

水洗净化PPS树脂的工艺经济可行，在要求较高时，可采取酸洗等方式提高纯度。

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Buildings contribute to human life when they provide shelter, enrich space, complement their site, suit the climate, and are economically feasible.

建筑为人类提供庇护所，丰富活动空间，拓宽场地，适应多变气候，并且也具有经济可行性，从而为人类生活做出贡献。

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As compared with other means of reaching our social goals, the technological has come to seem the most feasible, practical, and economically viable.

作为其他的达到我们的社会目标的手段的比较，技术已经变成看似最可行的，最有实践性的，最节约的可行性。

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"It is now about making it economically feasible and developing the demand, " he says.

WSJ: Can a Food for Cows Make Healthier Snickerdoodles?

Otherwise, it would probably require too many computational resources and programming time to be economically feasible.

FORBES: What's the Likelihood of the Singularity? Part Three: A Simulated World

Is it economically feasible for the USA to have a thriving middle class again?

FORBES: Why Is the U.S. Middle Class Unable to Defend Its Interests?