柯林斯詞典scalar /?ske?l?/ 1. N a quantity, such as time or temperature, that has magnitude but not direction 標(biāo)量→compare vector ,pseudoscalar ,pseudovector 2. ADJ having magnitude but not direction 標(biāo)量的 返回 scalar劍橋詞典something that has size but no direction , such as a quantity , distance , speed , or temperature 標(biāo)量的（只有大小沒有方向的，如數(shù)量、距離、速度或溫度） 比較vector 返回 scalar