页岩烧结砖没有放射性，具有良好的透水性、保水性，是清洁安全的环保产品。
The tile sintered from shale is a clean and safe environmental product with good water permeability and water locking performance without radioactivity.
研究结果表明：用煤矸石和适量固化剂制成的非烧结砖经过28d自然养护后，其质量和放射性均符合国家有关标准。
The practice show that quality and radioactivity of the product, which is made by gangue and some condensing agent, can meet related national regulation after 28 days' natural maintenance.
目的测定居室内装饰彩釉砖的放射性水平并制定其限值。
Objective to lay down the radiological limits to glazed tiles decorated in houses.
氡主要来自建筑材料，如花岗岩、砖砂、水泥及石膏之类，特别是含有放射性元素的天然石材，易释放出氡。
Radon from building materials such as granite, brick sand, cement and gypsum and the like, in particular, contain elements of natural stone and easy to release radon.
报道了咸阳市常用装饰石材及彩釉砖样品中天然放射性核素含量的调查分析结果，并据国家建筑材料放射性核素含量最新标准进行分类分析。
A report is made on the inspection results of the content of natural radionuclides of decorative stone and glazed tiles commonly used in Xianyang.
报道了咸阳市常用装饰石材及彩釉砖样品中天然放射性核素含量的调查分析结果，并据国家建筑材料放射性核素含量最新标准进行分类分析。
A report is made on the inspection results of the content of natural radionuclides of decorative stone and glazed tiles commonly used in Xianyang.
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