So, let's say that we take still the same line up there, x+2y+4z=7 and let's consider the plane with the equation x+2y+4z = 7.

我们还是看之前的那条直线，同时考虑平面。

youdao

Fifth, we derive the mathematical equation of the instantaneous DOA, when the target moving in line and in the same plane as ULA.

第五，根据目标运动轨迹，通过数学推导得出目标在线阵平面内做直线运动时的瞬时波达方向表达式。

youdao

Two-point form of straight-line equation is a mathematical model delineating the straight line joined by any two points in a plane.

两点式直线方程是描述平面上任意两点所连直线的一个数学模型。

youdao