较旧的生产技术往往继续产生毒性废物，这些废物在最初采用时没有受到管制。

Older production technologies often continue to generate toxic wastes that were not regulated when the technology was first adopted.

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新的教条远较旧的教条更为有害。

New dogmas are much worse that old ones.

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较旧的工具可能会忽略新数据。

Older tools could possibly ignore new data.

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