助剂是一种磷硅酸盐化学添加剂，它具有良好的缓蚀防垢和降低界面张力效果。
A newly developed phosphorus silicate material, SJT-B, is an effective auxiliary agent which slows down corrosion, prevents scale formation and reduces interfacial tension.
助剂是一种磷硅酸盐化学添加剂，具有良好的缓蚀防垢和降低界面张力的效果。
STJ-B aiding agent is a newly developed phosphorus silicate chemical additives, which has favorable effects on slowing down the erosion, preventing the scales and re-ducing the interfacial tension.
适用于降低裂化石油产品中硫水平的减硫催化剂，包括金属钒酸盐化合物。
A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound.
适用于降低裂化石油产品中硫水平的减硫催化剂，包括金属钒酸盐化合物。
A sulfur reduction catalyst useful to reduce the levels of sulfur in a cracked gasoline product comprises a metal vanadate compound.
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