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二次曲线 èrcì qūxiàn
avia. conical section
bridg.constr. quadratic curve
busin. conic section
space conic
tech. quadric curve; secondary curve
二次圆锥曲线
tech. conic section; conical section
二次〔圆锥〕曲线
scient. conic section
二次曲线: 73 phrases in 11 subjects
Agriculture1
Animal husbandry1
Business3
Computer numerical control1
Construction5
Earth sciences1
General13
Mathematics5
Oil / petroleum1
Shipbuilding1
Technology41

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