这意味着直线是平行于平面的。

That means it's parallel to the plane.

youdao

也就是说直线，实际上是平行于平面的。

OK, so that's what would tell you that the line is actually parallel to the plane.

youdao

另外，叶片轮的平面平行于极轴，这被称作是逆风设计。

In addition, the plane of the blades is parallel to the pole. This is called an upwind design.

youdao

But then, I combine i times Ax with i times Bx, because that's the vector parallel to i, with the length Ax.

然后我把 i ? Ax 和 i ? Bx 加起来,因为这是平行于 i,模长为 Ax 的矢量

耶鲁公开课 - 基础物理课程节选

That's clear. If I add them, I'll get a vector parallel to i with lengths Ax + Bx.

这很明显 如果把他们加起来,就得到一个平行于 i,模长为 Ax + Bx 的矢量

耶鲁公开课 - 基础物理课程节选

This part, being parallel to j, has to be some multiple of j.

而平行于 j 的那部分,也必然是 j 的倍数

耶鲁公开课 - 基础物理课程节选