Correct 无焰 / wú yàn / Strokes Example As an Adjective flameless 1 Wú 无 yàn 焰 rán shāo qì 燃烧器 Copy Pinyin Sentence flameless burner 2 Wú 无 yàn 焰 rán shāo 燃烧 Copy Pinyin Sentence flameless burning/conbustion 3 Wú 无 yàn huǒ 焰火 yào 药 Copy Pinyin Sentence flameless powder