他们提出“3R原则”，即减少动物使用量（replacetestingonanimals）、改善试验方法以减轻动物痛苦（refine their experimentsto minimise distress）和用非活体动物实验替代动物实验（replace testing on animals with alternativetechniques）。
They wanted scientists to restrict the use of animals, to refine their experiments to minimise distress and to replace testing on animals with alternative techniques.
他们提出“3R原则”，即减少动物使用量（replacetestingonanimals）、改善试验方法以减轻动物痛苦（refine their experimentsto minimise distress）和用非活体动物实验替代动物实验（replace testing on animals with alternativetechniques）。
They wanted scientists to restrict the use of animals, to refine their experiments to minimise distress and to replace testing on animals with alternative techniques.
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