高硫油料的铜片锈蚀试验的英文

copper stain test for high sulfur oils

• 高:    tall; high
• 硫:    sulphur; sulfur
• 的:    4次方是 The fourth po ...
• 铜:    copper
• 片:    a flat,thin piece; ...
• 锈蚀:    rustiness; rust; c ...
• 试验:    experiment; test; ...