perpendicularly

基本解释

I take my point on the surface and build a unit vector that is standing on it perpendicularly.
在曲面上固定一点,找出此点垂直的单位向量。
Light’s new trick is fancier than a boring push: It created the more complicated force called lift, evident when a flow in one direction moves an object perpendicularly.
但是光的新特性比单纯的推力要高级：光能产生这种更复杂的作用力-提拉力，很显著的例子是一个方向的光通量可以使物体垂直移动。
Such surfaces reflect most of the bats’ echolocation energy away from it, but some energy hits the surface perpendicularly, sending an echo back directly beneath the bat.
这样的平面反射了大部分蝙蝠的声波，但是有一部分能量垂直撞击到表面上，声波回传至蝙蝠。

"We want to get the lead inside, so instead of chopping the pencil up perpendicularly and exposing just the ends, we strip the wood casing off the outside and expose the length of the lead, " says Litzen.
FORBES: Ethanol