例句與用法

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1. Angular momentum is an axial vector quantity .
   角動(dòng)量是一種軸矢量。
2. Isospin is a vector quantity .
   同位旋是矢量。
3. A vector quantity is an entity with a magnitude and a direction in space .
   矢量是空間中既具有大小又具有方向的量。
4. Two vector quantities which are equal need not have the same physical effect .
   兩個(gè)相等的矢量并不一定有相同的物理效果。
5. A vector quantity is one whose direction as well as its magnitude is significant .
   矢量是一個(gè)其方向和其大小同樣有意義的量。