2001年2月开始研发车辆用油添加剂，并推出汽油引擎用“大力-S”机油调质剂。
Started to research and develop gasoline additive from Feb. 2001. At the same time, engine oil blending "engine Power - s" was launched.
利用SEM的能谱扫描功能，对钠盐调质脱硫剂硫化反应产物断面元素分布进行了分析。
The distribution of elements at the sulfidation reaction product section of a sodium salt-modified desulfurization agent was analyzed by using the energy-spectrum scanning function of SEM.
利用SEM的能谱扫描功能，对钠盐调质脱硫剂硫化反应产物断面元素分布进行了分析。
The distribution of elements at the sulfidation reaction product section of a sodium salt-modified desulfurization agent was analyzed by using the energy-spectrum scanning function of SEM.
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