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反正弦 fǎnzhèngxián
avia. inverse sine
bridg.constr. arc sine; anti sine
math. arc-sine
tech. anti-sine; arcsine
反正〔余〕弦
tech. arc sine; arc cosine
反 正弦: 14 phrases in 5 subjects
Agriculture1
Electronics1
Mathematics5
Statistics1
Technology6