不同工种人员间变应性鼻炎的发病无明显区别，其发病时间、症状轻重与工龄长短似无直接关系。

There was no apparent difference among the workers with different working type. It seemed that no relation was among the time occurrence, seriousness and the working age.

youdao

不同工种人员间变应性鼻炎的发病无明显区别，其发病时间、症状轻重与工龄长短似无直接关系。

There was no apparent difference among the workers with different working type. It seemed that no relation was among the time occurrence, seriousness and the working age.

youdao