zero sign的例句大全

The clumsy Roman numerals were ousted by the Arabic figures we use to this day, and the zero sign was first employed.

形状笨拙的罗马数字被我们一直沿用至今的阿拉伯数字所替代，并且第一次使用了零的符号。

Do you see the sign for air u.s.seven zero seven?

你看到美国航空公司七零七次的标志了吗？

The addition of two numbers with different signs equals the deduction of their absolute values ， while the addition of iwo numbers with the same sign equals the addition of their absolute values.Zero plus a positive number is still a positive number, and zero plus a negative number is still a negative number.

异号两数相加，等于其绝对值相减；同号两数相加，等于其绝对值相加；零加正数得正数，零加负数得负数。

sign- sequence impedance and zero-sequence impedance

正负序阻及零序阻抗

A square sign pattern matrix that does not have a zero row or zero column is sign potentially orthogonal ( SPO) if every pair of rows and every pair of columns allow orthogonality.

一个没有零行或零列的n阶符号模式矩阵是符号蕴含正交的，若每一对行和列向量都是蕴含正交的。

Use a negative sign to show that the value is less than zero.

用负号表示数值小于零.