This kind of activity for strengthening occupational safety and health of migrant workers and AIDS Prevention Education has an important significance.

这样的活动对于加强外来务工人员职业安全健康和预防艾滋病宣传教育有着重要的意义。

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Conclusion The activity of urinary NAG might be used as an earlier biomarker of renal injury for workers with occupational lead exposure.

结论尿nag活性似可作为铅致肾损害的早期生物标志物。

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In fact, occupational sitting time is where the epidemiology of physical activity first began, writes one researcher in the British Journal of Sports Medicine.

CNN: Sitting for hours can shave years off life