本文提出了采用偏光显微镜和X射线衍射仪联合方法鉴定自行车闸皮中低含量的温石棉、铁石棉及青石棉等三种石棉的方法。
A method of identification for low content chrysotile, crocidolite and amosite in brake rubber of bicycle by the united way of polarized light microscope and X-ray diffraction had been established.
本文采用低温灰化仪分离了我国18个煤样中的矿物质，用X射线衍射法对它们进行鉴定。
The mineral matter has been separated from 18 coal samples with a low temperature asher, and analyzed by means of X-ray diffraction method.
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