单词：environmental periodicity
environmental periodicity的用法和样例：
例句
- Periodicity of nuclear properties began to show up.原子核性质的周期性开始显示出来了。
- Slubby yarn is divided into periodicity slubby yarn and random slubby yarn.将竹节纱分为周期性竹节纱和随机竹节纱。
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