砷对紫外线的促黑素化作用没有协同效应。
Arsenic has no synergistic effect with UV on melanin metabolism.
分析了在黑钨精矿碱压煮条件下，磷砷渣中钨和污染因子砷的行为。
This paper analyzed the behaviour of tungsten and arsenic contamination factor in phosphorous-arsenic slag under the condition of pressure digestion with NaOH for wolframite concentrate.
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