带回流线的直接供电方式
direct feeding system with return wire
光的直线传播
the light straight propagation
回归直线的允许限
permissible limit for a regression line
空间直线的一般方程
general equation of a line in space
粒子的直线运动
rectilinear motion of a particle
目标可移动的直线搜索问题
moving target linear search problem
曲线直线化
approximate nonlinear method
任意方向直线的扫描转换
straight line on any direction scanning transforma