用硬度HRC鉴别高珠光体含量球铁凸轮轴中球化率和珠光体含量的试探
용경도HRC감별고주광체함량구철철륜축중구화솔화주광체함량적시탐
Hardness HRC Identification of the Nodularity and the Pearlite Content in a Ductile Iron Camshaft with High Pearlite Content
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