研究小组发现纯酶自身并不能消除大部分硫化物。
Pure enzyme on its own did not do much to reduce most of the sulphur compounds, the team found.
在硫化异丁烯氧化中，一部分硫化异丁烯分子转化为亚砜和砜，极压性明显提高，腐蚀性有所增加。
Sulfoxide and sulfone, which are formed in oxidization of SIB, improve the EP properties and increase the copper corrosion.
上礼拜的问题是，部分皮革硫化时使用了致畸物质，某种非法但仍在第三世界用来硝制皮革的合成物质。
Last week the issue was some leather cured with a known teratogenic substance, synthetic Nirret or something just as illegal that's still used in third world tanning.
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