Temperature as an environmental factor induced male infertility has attracted much attention.

温度作为一种外在因素引起男性不育逐渐受到重视；

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Ecogenetic disorder — a disorder resulting from the interaction of a genetic predisposition to a specific disease with an environmental factor.

由共同的环境因素与疾病特异的遗传易感性相互作用导致的疾病。

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Time can also be considered as an environmental factor, including season of the year or the time of day, week, or month that illnesses or deaths occur.

时间也被纳入环境因素，包括一年中的季节或一天，一周或一个月中疾病或死亡出现的时间。

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It may be that genetic mutations can accumulate without actually leading to a disorder, until, perhaps, they are triggered by an environmental factor or pile up enough to reach a critical mass.

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Environmental protection was an important factor in equipment design .

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