例句與造句

1. since scalars are independent of the coordinate system, the dot product of two vectors is called a scalar invariant .
   因?yàn)闃?biāo)量與坐標(biāo)系無關(guān)，故兩個(gè)矢量的點(diǎn)積稱為標(biāo)量不變量。
2. It's difficult to find scalar invariant in a sentence. 用scalar invariant造句挺難的