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combat aircraft
 combat aircraft
avia. 作战飞机
| cost of operation
 cost of operation
econ. 运行成本; 作业费用; 操作费用; 营业成
hydroel.st. 运行费用; 管理费用
interntl.trade. 营业成本; 经营费用
| and
 and
gen.
| maintenance
 maintenance
hydroel.st. 维护

to phrases
combat aircraft
avia. 作战飞机
combat aircraft cost of operation and maintenance
: 44 phrases in 5 subjects
Air defense3
Aviation36
Electronics2
General1
Space2