职业灰尘和化学品（蒸汽、刺激物和烟雾）；
occupational dusts and chemicals (vapors, irritants, and fumes);
一种观点认为，过敏之所以会产生，是由于人们在童年时期当免疫系统尚未成熟时曝露于某些刺激物之下，如灰尘或动物毛屑。
One view is that allergies can develop as the result of childhood exposure to certain irritants, such as dust or animal dander, while the immune system is not yet mature.
一种观点认为过敏可能会由于儿童时期免疫系统还不成熟的时候接触了某种刺激物比如灰尘或动物皮屑而导致。
One view is that allergies can develop as the result of childhood exposure to certain irritants, such as dust or animal dander, while the immune system is not yet mature.
其次就是受电脑产生的静电导致皮肤病，静电会吸附大量悬浮的灰尘，从而使得面部皮肤受到刺激，会出现过敏起疹等现象。
Secondly by computer-generated electrostatic cause skin diseases, electrostatic suspension of large traps dust, thus make the facial skin irritation, can appear allergic rash wait for a phenomenon.
其次就是受电脑产生的静电导致皮肤病，静电会吸附大量悬浮的灰尘，从而使得面部皮肤受到刺激，会出现过敏起疹等现象。
Secondly by computer-generated electrostatic cause skin diseases, electrostatic suspension of large traps dust, thus make the facial skin irritation, can appear allergic rash wait for a phenomenon.
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