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英语翻译The precautionary approach has its conceptual origins in

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英语翻译
The precautionary approach has its conceptual origins in the rejection of the assumptions inherent in the traditional ‘assimilative capacity approach’ which was based on the assumption that science could accurately determine the assimilative capacity of the environment and that,once determined,sufficient time for preventive action would remain.Failures of this approach,with conclusive scientific proof of the detrimental effects of activities or substances coming too late,have led,on a sector by sector basis,to the adoption of a precautionary approach.Any formulation of the precautionary principle is,therefore,a ‘tool for decision-making in a situation of scientific uncertainty’ which effectively ‘changes the role of scientific data’.
英语翻译The precautionary approach has its conceptual origins in
预防方法也有它的概念性的起源,它起源于对于继承了传统的同化能力的方法的反对.这种方法基于一种假设,即科学能精确地确定环境同化的能力.并且这种能力一经确定,就会留有足够的时间采取保护性的措施.但是由于确凿的科学证据证实这种活动和物质造成的有害影响产生得太晚了,这种方法失败了.这种方法的失败导致人们采用了预防方法.
因此,任何预防性原则的构想都是一个在科学论证不确定情况下,辅助人们做决定的工具,而它们将会有效地改变科学数据的作用.