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aircraft engine
 aircraft engine
avia. 飞机发动机
| emission
 emission
gen. 散发; 放射
el. 放射, 能的
environ. 排放
met. 传播

to phrases
aircraft engine
avia. 飞机发动机
met. 航空发动机
aircraft engine emission
: 29 phrases in 6 subjects
Aviation17
Ecology2
Environment1
General6
Oil / petroleum1
Technology2