不过,她表示,一种新产品得经过多种必需的测试和试验才能使用,而这个过程得耗上好几年。
But she said it would take many years for a product to go through the necessary tests and trials.
经过几年的使用后,质量低劣的部件更用可能出现故障。
After several years of use, poor quality of components used might malfunction.
不过,接触电磁波的好处要经过几个月才显示出来,这说明,其对人类的影响需要经过几年的手机使用才能表现出来。
But the memory benefits of exposure took months to show up - suggesting a similar effect in humans would take years of usage.
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