求这段文献的准确翻译！！直译的不要！

5. Conclusions
These results show that the common historical copper
and lead pigments react, in isolation, in a qualitatively
similar way with H2S. However, on works of art, it is
generally observed that only the lead white blackens over
time, suggesting the action of a discriminate intermediary,
possibly a bio-organism, in the degradation mechanism.
Controlled experiments using microbe cultures on various
pigments conducted alongside the isolation and the identi-
fication of biological organisms from pigments on real
artworks would be required to shed further light on this
important and widespread conservation issue. If established,
then antibacterial treatments of afflicted artworks might be
warranted in order to stabilise the lead pigments. These
experiments have also raised questions regarding the nature
of the PbS species in degraded lead white and, although
additional structural investigations of the black product are
warranted, it is likely that the offending lead(II) sulphide is
incorporated into a more complex double salt with lead(II)
carbonate.

这些结果表明,共同的历史的铜
　　和铅颜料的反应,孤立起来,在定性研究
　　类似的方式与硫化氢。然而,在艺术作品,它是
　　通常发现只有带头白已变黑了
　　一次,一个歧视的中介,
　　可能是bio-organism,在降解有机污染物的机理。
　　控制实验用微生物在各种文化
　　色素进行隔离和识别与-
　　fication来自色素的生物有机体在真正的
　　作品将被要求对这个棚子更进一步
　　重要问题和普遍的保护。如果建立,
　　然后抗菌疗法的困苦。艺术品
　　为了稳定,保证铅颜料。这些
　　实验也提出了一些关于大自然
　　这个PbS物种的白色,虽然退化领先
　　额外的结构中的黑色的产品
　　保证,它是可能的,令人厌恶的铅(2)硫化物
　　纳入一个更复杂的双重盐和铅(II)
　　碳酸盐岩。