positional notation system造句

例句与造句

1. By 1950 BC, this was a positional notation system.
2. Of particular note is the use in Chinese mathematics of a decimal positional notation system, the so-called " rod numerals " in which distinct ciphers were used for numbers between 1 and 10, and additional ciphers for powers of ten.
3. It's difficult to find positional notation system in a sentence. 用positional notation system造句挺难的