回火脆性转变温度曲线
Temper brittleness transition temperature curve
回归式变异数分析
Analysis of variance in regression
灰渣泵变频调速设计
Design of Transduce Governing in Slag Pump
灰度级－彩色变换法
gray-color transform technique
灰度变化相似度
similarity of intensity change
换向器式变频机
commutator frequency changer