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Spiders do not take well to farming, and as they are mostly teeny little creatures, they don't produce enough silk to be useful in large-scale production.

蜘蛛不适宜大规模养殖，而且由于蜘蛛多为微小的生物，所以它们产出的蛛丝不足以用于大规模生产。

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The Obama administration says it is laying the groundwork to develop a vaccine against swine flu, although no decision has been made on large-scale production of such a vaccine.

VOA: standard.2009.05.03

As it makes the tricky transition from demonstration-scale production to commercial-scale manufacturing, it has little room for execution error.

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But many health systems, for-profit and not-for-profit, share its goal: large-scale, production-line medicine.

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Hall noted that even full-scale production doesn't mean there will be an immunization campaign.

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