“grandfather clause”的概念、定义、翻译、参考文献-科学参考

单词	grandfather clause
释义	grandfather clause 保留条款
随便看	droppage drop panel (在无梁楼盖结构中围绕柱顶加厚的托板) dropped beat dropped-beat pulse dropped bottom dropped elbow dropped head dropped punt dropped throat drop pen dropper dropper box drop pile-hammer dropping dropping angle dropping board scraper dropping board (鸡舍) dropping bottle dropping characteristic dropping electrode dropping equipment dropping fraction dropping funnel dropping incidence of disease dropping in hill

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