This method and principal decide the test units and have direct influence on the results of the final test of the hazardoussubstances.
样品拆分的方法和原则决定了检测单元的划分，并对最终检测结果有着直接的影响。
2
Lots of plastic water bottles end up in landfills and many electronics are shipped overseas to be disassembled, exposing people to hazardoussubstances.
很多塑料瓶使用的是垃圾掩埋法，很多废旧电子产品则是运往海外分解，这会导致人们暴露在有害物质之下。
3
Lead may also be introduced from other sources, yet the FDA does not require testing of finished cosmetics for lead or any other hazardoussubstances.