Model CR118 has a Fraction to Decimal Conversion Chart and Trigonometric Ratio Equations etched on the front side.
CR118 模型的正面刻有一个分数到十进制的转换图和三角比公式。
2
It's also an irrational number, with an infinite number of decimal places and can't be written as a ratio of two whole Numbers.
pai也是个无理数，它的小数位有无限多，而且pai无法写成了两个整数的比值。
3
This paper introduces the calibration of current transformers with special current ratio of decimal fraction the application of the current comparator is also introduced.