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noun | adjective | to phrases
preoperation ['priːɔpə'reiʃən] n
gen. 空转; 试运行〔转〕
preoperation adj.
comp. 试运转 (praeoperatio)
compr. 试运行; 预运行
preoperation: 8 phrases in 3 subjects
Automobiles2
Business1
Technology5