The algorithm employs crossover operations and a hybrid scaling method to combines both linear and sequencing-based nonlinear scaling methods.

该算法使用了有效的交叉操作，并设计了将线性定标与基于排序的非线性定标相结合的混合适应值定标方法。

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AIM: To observe the effect of hybrid subgingival scaling (combining ultrasonic scaling with hand scaling) by SEM.

目的：超声龈下刮治结合手工刮治，用扫描电镜的方法观察效果。

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