滑雪钓鱼打猎郊游野外作业时取暖。
Ski, fish, go hunting, outing, getting warm at the time of the field work.
可广泛适用于野外作业以及教学实验。
And the invention can be widely applied to field operation and teaching experiment.
目的：研究干热环境对野外作业工人健康的影响。
Objective: To investigate the effects of arid and hot environment on oil worker's health.
目的：研究油田野外作业女工职业紧张与工作能力的关系。
Objective: To study the relationship between occupational stress and work ability on female workers.
再过几年，他就要老了，不能再做这种艰苦的野外作业了。
In a few years he would be getting too old for the hard fieldwork.
再过几年，他就要老了，不能再做这种艰苦的野外作业了。
In a few years he would be getting too old for the hard fieldwork.
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