路径1在T-V图上,竖直向上。

Path number 1 I'm going straight up in the V-T diagram.

youdao

从而法向量的方向是竖直向上或向下的。

The normal vector is just sticking straight up or straight down.

youdao

给出了周向初应力数值特征对端部受推力竖直向上加速圆柱壳弹性屈曲形式和临界力的影响。

The inflectional form and the critical value's effect imposed by circumferential initial stress character on cylindrical thin shell beard the thrust at axis, accelerating upwards erect.

youdao

Then you guys know, you just told me, acceleration is -9.8, We call it "minus" because it's accelerating down and up was taken to be the positive direction.

然后你们都知道,你告诉我,加速度是-9.8,我们取负号是因为加速度方向朝下,而正方向为竖直向上

耶鲁公开课 - 基础物理课程节选

Path number 1 I'm going straight up in the V-T diagram.

路径1在T-V图上,竖直向上。

麻省理工公开课 - 热力学与动力学课程节选