那么什么叫简单的竖直区域？
即竖直方向的单位向量。
你的身体将保持竖直。
挑一把竖直的椅子，坐好，保持脊椎的挺直。
Choose an upright chair and sit well back so that your spine is straight.
竖直地将右腿伸直。
您能给我再谈一谈竖直活荷载吗？
然后它竖直了身子，又兜起圈子来。
在水平和竖直切削时可安全定位。
向量场是竖直的。
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.
然后图案就被校准在竖直中心位置上。
The graphics are then aligned to be sure they are straight and centered.
灯座的一对弯曲的竖直支撑。
你的目标是竖直方向上下的坚定的握手。
熔体自由表面将发生倾斜，最终趋于竖直。
Melt free surface tends to be inclined and to be vertical at last.
延展式竖直型拉链口袋。
在这幢建筑的可移动部分，橡胶软管在竖直方向上连着。
Rubber hoses connect the uprights to their mates in the mobile part of the building.
将四只手指竖直并拢并向大拇指方向闭合即可。
Hold the fingers straight and then close them against the thumb.
它竖直挺立，四十八英尺高，直径十二英尺。
It stands erect, forty-eight feet in height and twelve feet in diameter.
垂直起飞飞机是一种能竖直地离地升空的飞机。
A a vertical takeoff aircraft is one that can rise straight from the ground.
介绍对竖直矩形窄通道进行的池沸腾实验研究。
An experiment on boiling in rectangular narrow space is presented.
其中一只雄性大猩猩为了把我看得更仔细，竖直地站了起来。
也不是沿一条抛物线轨迹，因为小球是竖直射出的。
It wasn't going into a parabola because I was shooting it straight up.
把竿子竖直。
如果你的字母竖直上下，你可能是一个条理性强的人。
If your letters are written up and down, you are probably a logical person.
大气竖直折射是影响竖直角观测精度的关键因素之一。
Vertical atmosphere refraction calculation was a difficult problem all along.
门柱一竖直的柱子，在其上有一大门，或一大门朝此方向关闭。
An upright post on which a gate is hung or against which it closes.
在没有风的时候，我们可以看到烟囱里冒出的烟是竖直上升的。
We can see that when there is no wind, smoke from a chimney is straight.
你也可以用一把锋利的刀，竖直地握住玉米棒子然后从下面切起。
You can also use a sharp knife, hold the cob vertically and cut downward.
你也可以用一把锋利的刀，竖直地握住玉米棒子然后从下面切起。
You can also use a sharp knife, hold the cob vertically and cut downward.
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