例句與造句

1. For real datasets, the species abundances are binned into logarithmic categories, usually using base 2, which gives bins of abundance 0-1, abundance 1-2, abundance 2-4, abundance 4-8, etc . Such abundance classes are called " octaves "; early developers of this concept included F . W . Preston and histograms showing number of species as a function of abundance octave are known as Preston diagrams.
2. It's difficult to find logarithmic category in a sentence. 用logarithmic category造句挺難的