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机译:印度古吉拉特邦瓦斯坦褐煤的石化表征和演化
Coal & Organic Petrology Lab, Department of Geology, Banaras Hindu University, Varanasi-221005, India;
Research & Development Division, Tata Steels Ltd., Jamshedpur, India;
Macerals; Microlithotypes; Lignite; Paleomire; Vastan;