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three-level [ˌθriː'lεvl]
gen. 级的; 三层的; 三平面的
tech. 三能级
three- level: 52 phrases in 14 subjects
Agriculture1
Architecture1
Aviation2
Business3
China1
Earth sciences1
Economy1
Electronics3
Information technology2
Management1
Polymers1
Space2
Technology29
Telecommunications4