| 单词 | 正数 |
| 释义 | 〔denumerable〕Capable of being put into one-to-one correspondence with the positive integers; countable.可数的：能够用正数一个一个地表示出来的；可数的〔factorial〕The product of all the positive integers from 1 to a given number:阶乘：从1到所给数字中的所有正数相乘：〔plus〕Positive or on the positive part of a scale:正的，正数的：正的或在某一度量的正方的：〔quadrant〕Any of the four areas into which a plane is divided by the reference axes in a Cartesian coordinate system, designatedfirst, second, third, and fourth, counting counterclockwise from the area in which both coordinates are positive. 象限：在笛卡尔坐标系中，被坐标轴分开的平面中的四个区域的任一个，命名为第一，第二，第三 和 第四， 从此象限逆时针计算坐标为正数 〔finite〕Having a positive or negative numerical value; not zero.正数或负数的；非零的 |
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