The vector hydrophone gives attention to two aspects: the vector quantity and scalar quantity , so more attention is paid on it.

矢量水听器由于兼顾了实际海洋声场的标量和矢量性质，而越来越受到人们的关注。

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There's one quantity that's going to come out the same, no matter who is looking at the vector.

但是也有一个量是始终不变的,不管是谁在观察这个矢量

耶鲁公开课 - 基础物理课程节选

We learned that a vector is a quantity that has a magnitude and a direction.

我们已经知道矢量是一个,既有大小又有方向的量

耶鲁公开课 - 基础物理课程节选