这个世界上有10 种人，其中有些是能理解三进制的，有些不懂，有些则把它和二进制弄混淆了。
There are 10 kinds of people in the world, those that understand trinary, those that don't, and those that confuse it with binary.
你能用三个十进制数字表示的最大数字是多少？
What's the biggest number you can represent with three decimal digits?
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。
Model CR118 has a Fraction to Decimal Conversion Chart and Trigonometric Ratio Equations etched on the front side.
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