natural scale的用法和樣例：
例句
- Today we are going to classify natural numbers by seeing how many divisors they have.
我們學(xué)習根據一個(gè)數約數的個(gè)數來(lái)對自然數進(jìn)行分類(lèi)。 - In this paper a new mutation operator is proposed, which is applied into chromosomes encoded with natural numbers.And the optimal mutation rate is studied.
針對自然數編碼的遺傳算法，提出了一個(gè)新的變異規則，并研究了相應的最優(yōu)變異率。
