Well, at the time, it was just a vector.
那时候，它只是一个向量。
Vector control is the main way to reduce malaria transmission at the community level.
病媒控制是在社区一级减少疟疾传播的主要途径。
If you look at the vector from behind, you see a cross.
如果矢量背对你，你看到的是一个叉。
All of the important vector species bite at night.
所有这些主要病媒按蚊均在夜间叮咬。
Remember that was the vector field that looked like a rotation at the unit speed.
我们记得，这是个以单位速度旋转的向量场。
And, we look at how the position vector changes.
来看看位置矢量的改变。
All of the important vector species bite at night.
所有这些主要病媒物种均在夜间叮咬。
We cannot provide the vector map or sequence at this time.
我们不能提供的矢量地图，在这个时候或序列。
We cannot provide the vector map or sequence at this time.
我们不能提供的矢量地图，在这个时候或序列。
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