maximum permissible accumulated dose

例句：

1. 1.The maximum permissible accumulation of pollutants in the environment is strictly controlled.
   环境中污染物的最大允许累积量受到严格控制。
2. 2. The manufacturer has set a maximum permissible accumulation level for lead in toys.
   制造商已为玩具中的铅设定了最大允许累积水平。
3. 3.The safety standards for this product have been revised to ensure that the maximum permissible accumulation of toxic substances does not exceed the acceptable levels.
   该产品的安全标准已修订，以确保最大允许累积的有毒物质不超过可接受水平。