• That vector is called a "null vector".

    那种矢量叫做矢量“。

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  • An expressing vector of major outer-membrane protein of Chlamydia psittaci was constructed.

    构建了鹦鹉热原体主要外膜蛋白表达载体

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  • This research intended to construct a eukaryotic expression vector with a site-directed mutation of porcine MSTN propeptide gene.

    研究旨在构建具有猪 MSTN 前肽基因定点突变真核表达载体

    youdao

  • I experience a vector quantity.

    经历一个矢量量变

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  • It's a vector, perpendicular.

    一个与半径垂直矢量

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  • Now, what's the gradient vector?

    现在梯度向量什么呢?

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  • These involve vector quantities.

    这些则包括向量

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  • Well, you know the normal vector.

    那么当然知道它的法向量

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  • Remember this-- this is a vector.

    记住是个矢量

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  • Of course, it's not a real vector.

    显然不是一个实际意义上的向量

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  • What is the normal vector?

    那么法向量又是什么呢?

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  • We have this vector field.

    是向量

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  • Now, how do we get this unit vector?

    我们怎么得到单位矢量呢?

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  • A I call this vector vector a.

    称之为矢量

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  • It is not a unit vector.

    不是单位向量

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  • That was a vector field in the plane.

    一个平面向量

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  • This makes it a vector.

    构成一个矢量

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  • What about vector BP?

    向量BP什么

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  • This is that vector.

    就是这个矢量

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  • We dot our favorite vector field with it.

    我们喜欢的向量

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  • So, this vector field is not conservative.

    所以这个向量不是保守场

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  • That means your normal vector points down.

    意味着向量指向

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  • Add the access point to your location vector.

    访问添加位置向量中。

    youdao

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