当前,关于镍致癌作用研究的一个焦点是阐明各种镍化合物及其物理、化学和生物学作用与致癌活性问的关系。人们之所以认为上述问题具有重要性,在于观察到某些镍化合物对 At present, a focus on the carcinogenesis of nickel is to elucidate the relationship between various nickel compounds and their physical, chemical and biological roles and oncogenic activity. The reason why people think the above problem is important is that some pairs of nickel compounds are observed