怎样才能使纳米技术既环保又有可持续性?
开发出更有效和更具可持续性的生产技术需要付出大量的努力。
The development of more efficient and more sustainable production technology demands great efforts.
开发出更有效和更具可持续性的生产技术需要付出大量的努力。
The development of more efficient and more sustainable production technology demands great efforts.
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