名词
中文翻译：向量
同义词：
['direction', 'directional', 'directional vector', "directional vector field例句：1. The vector ofthe Earth's gravity is 9.8 m/s².（地球的重力向量是9.8米每秒平方。）"]
例句：
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1. The vector ofthe Earth's gravity is 9.8 m/s².
地球的重力向量是9.8米每秒平方。
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2. The vector addition of two vectorsis their sum.
两个向量的向量和是它们的和。
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3. The vector field represents theflow of a fluid.
向量场代表流体的流动。