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难燃
 难燃
China law flame-retardant
| 碳氢化合物
 碳氢化合物
gen. hydrocarbon
archit. Nytron
earth.sc. hydrocarbons
eng.geol. hydrocarbon compounds; hydrocarbons
environ. hydrocarbon
met. hydrocarbon compound
space hydrocarbon

to phrases
难燃 nánrán
China, law flame-retardant
难燃
: 30 phrases in 13 subjects
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