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aircraft engine
 aircraft engine
avia. 飞机发动机
| emissions
 emission
gen. 散发; 放射
environ. 排放
 emissions
auto. 排放物; 排放量; 排放 标准
met. 散放物; 排放物

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