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渐开线 jiànkāixiàn
compr. evolvent
met. evolute; involute
oil involute curve
渐开 线: 72 phrases in 13 subjects
Agriculture2
Automobiles16
Aviation1
Compressors5
Electric machinery6
Electronics1
General1
Metallurgy1
Nautical1
Oil / petroleum6
Space1
Technology28
Wind Energy3