That vector is called a "null vector".
那种矢量就叫做”零矢量“。
An expressing vector of major outer-membrane protein of Chlamydia psittaci was constructed.
构建了鹦鹉热衣原体主要外膜蛋白的表达载体。
This research intended to construct a eukaryotic expression vector with a site-directed mutation of porcine MSTN propeptide gene.
本研究旨在构建具有猪 MSTN 前肽基因定点突变的真核表达载体。
I experience a vector quantity.
我经历了一个矢量的量变。
一个与半径垂直的矢量。
Now, what's the gradient vector?
现在，梯度向量是什么呢？
These involve vector quantities.
这些则包括向量。
Scalable vector graphics (SVGs).
可伸缩的矢量图形（SVG）。
OK, so that's the velocity vector.
好，这就是速度矢量。
It may be termed a time-gate vector.
它可以被称为多向矢量性时间之门。
A I call this vector vector a.
我称之为矢量。
So, the acceleration vector is;.
那加速度就是。
它构成一个矢量。
We dot our favorite vector field with it.
用我们喜欢的向量场来点乘它。
What will the angular momentum vector do?
角动量的矢量会怎样呢？
That means your normal vector points down.
那意味着法向量指向下。
The second is the initial vector byte array.
第二个是初始矢量字节数组。
That corresponds to normal vector pointing up.
那相当于法向量指向上。
At the origin, the vector field is not defined.
在原点，向量场是没有意义的。
The key to understanding this all is vector arithmetic.
理解这一切的关键在于向量算术。
The outer vector holds all the inner vector objects.
外部vector包含所有内部vector对象。
OP So, this vector here -- This vector here is vector OP.
那么向量在这，--，这向量是。
The normal vector pointing up, here we know what it means.
法向量指向上，这里我们知道它是什么意思。
We have a vector field that gives us a vector at every point.
有一个向量场来描述每一个点上的向量。
Each measurement site is a linear vector of temperature values.
每一个测量位置是温度值的一个线性向量。
Later articles in this series will deal with vector operations.
本系列的后续文章会深入介绍向量运算。
In fact, our vector field and our normal vector are parallel to each other.
事实上，给定的向量场与法向量是相互平行的。
So, the velocity vector is the derivative of a position vector with respect to time.
速度向量，是位置向量关于时间的导数。
And we have learned how to package partial derivatives into a vector, the gradient vector.
我们也知道了，如何将各个偏导组合成一个梯度向量。
So, if the gradient of a function is a vector, the divergence of a vector field is a function.
如果说函数的梯度是向量，那么向量场的散度就是函数。
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