“track etch survey accumulative Radon meter”的概念、定义、翻译、参考文献-科学参考

单词	track etch survey accumulative Radon meter
释义	track etch survey accumulative Radon meter Encyclopedia 工学氡及氡子体测量设备释 track etch survey accumulative Radon meter径迹法累计测氡仪可以累积测量几天、几个月，甚至几年内空气中氡浓度的平均值或累计暴露量的仪器。能测量出氡浓度的年平均值，适用于测量场所的氡浓度。
随便看	Prandtl boundary layer equations Prandtl crater Prandtl-Glauert approximation Prandtl-Glauert law of similarity Prandtl-Glauert rule Prandtl integro differential equation Prandtl integro-differential equation Prandtl-Meyer flow Prandtl number Prandtl-Reuss equation p-rank p-rank of Abelian variety Prantdl-Meyer flow Pra River Prasanta Chandra Mahalanobis praseodymium Praslin Island pratacultrual total factor productivity pratacultue science pratacultural pratacultural education for ethnic minorities pratacultural higher education of American pratacultural industrialization Pratacultural Science pratacultural system coupling

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