3级直线差动机构
three-level straight line differential mechanism
Richardson直线法
Method of Richardson line
半对数直线段斜率
semilog straight-line slope
标准渐开线直齿轮
standard Involute spur gear
长初级双边直线感应电动机
Long Primary Double-sided Linear Induction Motor
长初级直线感应电动机
Double-sided Linear Induction Motor
长定子直线感应电动机
Long Primary Double-sided Linear Induction Motor
垂直线电流源
vertical line source of current