The number a is called a double root of the polynomial function f.

数a称为多项式丞数f的二重根.

辞典例句

Double root canal, how did that go?

要做两颗牙的牙根管填充手术?

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Objective : To establish a procedure of removing the impurity in double - root oral solution.

目的: 建立双根口服液除杂质的工艺方法.

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