Data relied on by the agency showed that25% of all employees in the industry suffered at least low-grade byssinosis, and that even at the level required by the new standard, about half this many employees would suffer from the 机构所相信的数据表明,在纺织工业中21%雇员都患了轻微的棉屑沉着病,即使处在新标准所规定的环境下,这些雇员的大约一半也会患?