常見(jiàn)例句Bierbaum scratch hardness equipment 比爾鮑姆刮刻硬度儀Bierbaum microcharacter 比爾鮑姆微壓痕硬度計(jì)Bierbaum scratch hardness 比爾鮑姆劃痕硬度Bierbaum scratch hardness test 貝包姆劃痕硬度試騐 返回 Bierbaum