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The advantage of introducing that guy is that if you like, I can now write an equation for the acceleration as a vector.
引入它的好处是,如果你愿意的话,我可以把加速度写成矢量形式
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So think of x as a vector of 0's and 1's.
可以把x看成是一个0和1的向量。
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If you want to write it as a vector equation, you want to write it as v square over r minus-- I want to say that it's pointing in the direction toward the center.
如果要写出矢量方程,就应该写成 -v^2 / r,也就是说,方向就向圆心
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But if you're trying to use that virus as a gene delivery vector and your body gets rid of it then the therapy has failed, it's ended.
但如果你想把腺病毒作为基因治疗载体,而你的身体清除这种病毒,治疗就失败了,前功尽弃了
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If you multiply it by 2, you get a vector two times as long.
如果拿它乘以2,你就得到一个两倍长的矢量
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Everything is the same as in 1D, except everybody's a vector now.
所有的都和一维下是相同的,除了都换成矢量了
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That's another advantage of using viruses as a gene therapy vector.
这是病毒,作为基因疗法载体的另一个优势
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The claim is, I can write any vector you give me as a real scale i plus a real scale j.
也就是说,我可以把任何你给我的矢量,写成 i 和 j 的实系数线性组合的形式
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Therefore, the vector A that you gave me, I have managed to write as i times Ax plus j times Ay.
这样,你给我的矢量 A,我已把它写成 i ? Ax + j ? Ay的形式
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Then you're able to generalize that and say, if you multiply it by 2.6, I mean a vector 2.6 as long as A.
然后可以将其推广到更一般的情况,如果用2.6乘以它,所得矢量即为矢量 A 的2.6倍
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