The combustion form of richflame is part-premixed combustion and lean flame is premixed combustion.
浓火焰燃烧形式为部分预混燃烧，淡火焰的燃烧形式为全预混燃烧。
2
The author even regrets the removal from the paintbox of rich greens based on arsenic and flame-red vermilion formed from powdered mercuric sulphide.
甚至让笔者感到遗憾的是含砷的浓绿色和粉状硫化汞制成的火焰般红色的朱砂从颜料盒中消失了。
3
The joke was followed by an opulent show of ballet, circus performances and classical music, an ode to the country's rich literary history - before the Olympic flame was finally extinguished.