供氢体稀释减粘裂化过程的英文

hydrogen donor diluent visbreaking process

• 供:    offerings
• 氢:    hydrogen
• 体:    body; part of the ...
• 稀释:    dilution; thinning ...
• 减:    subtract
• 粘:    glue; stick; paste ...
• 裂化:    cracking
• 过程:    process; procedure ...