“periodmeter”的概念、定义、翻译、参考文献-科学参考

单词	periodmeter
释义	periodmeter 周期计
随便看	grade ratio grade record grade reduction (GR) grader elevator grade resistance grade rod grade scale grade sensor grade-separated interchange grade separating efficiency grade separation grade(-)separation grade separation structure grade slab grades of tax rates grade specific gravity grade stake grade-stake grade stress grade surface grade tester grade tunnel grade washer grade waste pond gradfly

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