coefficient
noun [ C ] mathematics specialized uk/ˌkəʊ.ɪˈfɪʃ.ənt/ us/ˌkoʊ.ɪˈfɪʃ.ənt/
系数
a value, in mathematics, that appears in front of and multiplies another value
In 2x + 4y = 7, 2 is the coefficient of x. 在方程2x+4y=7中,2是x的系数。
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