quartic

🇬🇧/ˈkwɔːtɪk/ 🇺🇸/ˈkwɔːrtɪk/ 65
involving the fourth and no higher power of an unknown quantity or variable.

adjective [原级]四次的

And what was the point of a quartic steering wheel?而且四次式的方向盘又是怎么一回事啊?

noun [抽象名词]四次方程;四次函数;四次曲线;四次曲面

A complete quartic polynomial consists of 15 terms.一个完整四次的多项式由15项组成。

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